Home / 1,040,042,897.70-1,560,064,346.55-349,720,721.70

Finding the Fourth Proportional to 1,040,042,897.70, 1,560,064,346.55 and 349,720,721.70

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Solution

The fourth proportional to 1,040,042,897.70, 1,560,064,346.55 and 349,720,721.70 is: 524,581,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,042,897.70 : 1,560,064,346.55 = 349,720,721.70 : x
  2. Step 2: Convert to fraction form
    1,040,042,897.70/1,560,064,346.55 = 349,720,721.70/x
  3. Step 3: Cross multiply
    1,040,042,897.70x = 1,560,064,346.55 × 349,720,721.70
  4. Step 4: Simplify right side
    1,040,042,897.70x = 545,586,829,173,904,896
  5. Step 5: Solve for x
    x = 545,586,829,173,904,896/1,040,042,897.70
  6. Step 6: Final answer
    x = 524,581,082.55

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Half scale
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Double scale
Find fourth proportional to 1,040,042,898.70, 1,560,064,348.05 and 349,720,722.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.