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Finding the Fourth Proportional to 489,901,505.60, 734,852,258.40 and 452,488,059.20

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Solution

The fourth proportional to 489,901,505.60, 734,852,258.40 and 452,488,059.20 is: 678,732,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,901,505.60 : 734,852,258.40 = 452,488,059.20 : x
  2. Step 2: Convert to fraction form
    489,901,505.60/734,852,258.40 = 452,488,059.20/x
  3. Step 3: Cross multiply
    489,901,505.60x = 734,852,258.40 × 452,488,059.20
  4. Step 4: Simplify right side
    489,901,505.60x = 332,511,872,202,152,896
  5. Step 5: Solve for x
    x = 332,511,872,202,152,896/489,901,505.60
  6. Step 6: Final answer
    x = 678,732,088.80

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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.