Home / 1,040,042,879.70-1,560,064,319.55-349,720,703.70

Finding the Fourth Proportional to 1,040,042,879.70, 1,560,064,319.55 and 349,720,703.70

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Solution

The fourth proportional to 1,040,042,879.70, 1,560,064,319.55 and 349,720,703.70 is: 524,581,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,042,879.70 : 1,560,064,319.55 = 349,720,703.70 : x
  2. Step 2: Convert to fraction form
    1,040,042,879.70/1,560,064,319.55 = 349,720,703.70/x
  3. Step 3: Cross multiply
    1,040,042,879.70x = 1,560,064,319.55 × 349,720,703.70
  4. Step 4: Simplify right side
    1,040,042,879.70x = 545,586,791,650,287,616
  5. Step 5: Solve for x
    x = 545,586,791,650,287,616/1,040,042,879.70
  6. Step 6: Final answer
    x = 524,581,055.55

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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.