Home / 775,350,931.69-1,069,987,612.31-422,934,602.41

Finding the Fourth Proportional to 775,350,931.69, 1,069,987,612.31 and 422,934,602.41

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Solution

The fourth proportional to 775,350,931.69, 1,069,987,612.31 and 422,934,602.41 is: 583,651,565.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,350,931.69 : 1,069,987,612.31 = 422,934,602.41 : x
  2. Step 2: Convert to fraction form
    775,350,931.69/1,069,987,612.31 = 422,934,602.41/x
  3. Step 3: Cross multiply
    775,350,931.69x = 1,069,987,612.31 × 422,934,602.41
  4. Step 4: Simplify right side
    775,350,931.69x = 452,534,785,395,955,072
  5. Step 5: Solve for x
    x = 452,534,785,395,955,072/775,350,931.69
  6. Step 6: Final answer
    x = 583,651,565.89

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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.