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Finding the Fourth Proportional to 488,339,862.40, 732,509,793.60 and 453,902,485.60

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Solution

The fourth proportional to 488,339,862.40, 732,509,793.60 and 453,902,485.60 is: 680,853,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,339,862.40 : 732,509,793.60 = 453,902,485.60 : x
  2. Step 2: Convert to fraction form
    488,339,862.40/732,509,793.60 = 453,902,485.60/x
  3. Step 3: Cross multiply
    488,339,862.40x = 732,509,793.60 × 453,902,485.60
  4. Step 4: Simplify right side
    488,339,862.40x = 332,488,016,041,382,976
  5. Step 5: Solve for x
    x = 332,488,016,041,382,976/488,339,862.40
  6. Step 6: Final answer
    x = 680,853,728.40

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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.