Home / 1,040,042,897.20-1,560,064,345.80-349,720,721.20

Finding the Fourth Proportional to 1,040,042,897.20, 1,560,064,345.80 and 349,720,721.20

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Solution

The fourth proportional to 1,040,042,897.20, 1,560,064,345.80 and 349,720,721.20 is: 524,581,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,042,897.20 : 1,560,064,345.80 = 349,720,721.20 : x
  2. Step 2: Convert to fraction form
    1,040,042,897.20/1,560,064,345.80 = 349,720,721.20/x
  3. Step 3: Cross multiply
    1,040,042,897.20x = 1,560,064,345.80 × 349,720,721.20
  4. Step 4: Simplify right side
    1,040,042,897.20x = 545,586,828,131,582,144
  5. Step 5: Solve for x
    x = 545,586,828,131,582,144/1,040,042,897.20
  6. Step 6: Final answer
    x = 524,581,081.80

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Double scale
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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.