Home / 775,350,972.69-1,069,987,669.02-422,934,643.41

Finding the Fourth Proportional to 775,350,972.69, 1,069,987,669.02 and 422,934,643.41

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Solution

The fourth proportional to 775,350,972.69, 1,069,987,669.02 and 422,934,643.41 is: 583,651,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,350,972.69 : 1,069,987,669.02 = 422,934,643.41 : x
  2. Step 2: Convert to fraction form
    775,350,972.69/1,069,987,669.02 = 422,934,643.41/x
  3. Step 3: Cross multiply
    775,350,972.69x = 1,069,987,669.02 × 422,934,643.41
  4. Step 4: Simplify right side
    775,350,972.69x = 452,534,853,250,070,848
  5. Step 5: Solve for x
    x = 452,534,853,250,070,848/775,350,972.69
  6. Step 6: Final answer
    x = 583,651,622.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.