Home / 915,577,147.20-1,373,365,720.80-625,339,502.40

Finding the Fourth Proportional to 915,577,147.20, 1,373,365,720.80 and 625,339,502.40

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Solution

The fourth proportional to 915,577,147.20, 1,373,365,720.80 and 625,339,502.40 is: 938,009,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,577,147.20 : 1,373,365,720.80 = 625,339,502.40 : x
  2. Step 2: Convert to fraction form
    915,577,147.20/1,373,365,720.80 = 625,339,502.40/x
  3. Step 3: Cross multiply
    915,577,147.20x = 1,373,365,720.80 × 625,339,502.40
  4. Step 4: Simplify right side
    915,577,147.20x = 858,819,836,458,289,280
  5. Step 5: Solve for x
    x = 858,819,836,458,289,280/915,577,147.20
  6. Step 6: Final answer
    x = 938,009,253.60

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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.