Home / 398,785,237.28-598,388,606.88-282,949,201.72

Finding the Fourth Proportional to 398,785,237.28, 598,388,606.88 and 282,949,201.72

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Solution

The fourth proportional to 398,785,237.28, 598,388,606.88 and 282,949,201.72 is: 424,573,336.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,785,237.28 : 598,388,606.88 = 282,949,201.72 : x
  2. Step 2: Convert to fraction form
    398,785,237.28/598,388,606.88 = 282,949,201.72/x
  3. Step 3: Cross multiply
    398,785,237.28x = 598,388,606.88 × 282,949,201.72
  4. Step 4: Simplify right side
    398,785,237.28x = 169,313,578,635,038,912
  5. Step 5: Solve for x
    x = 169,313,578,635,038,912/398,785,237.28
  6. Step 6: Final answer
    x = 424,573,336.24

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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.