Home / 425,740,456.80-638,610,685.20-153,075,794.40

Finding the Fourth Proportional to 425,740,456.80, 638,610,685.20 and 153,075,794.40

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Solution

The fourth proportional to 425,740,456.80, 638,610,685.20 and 153,075,794.40 is: 229,613,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,740,456.80 : 638,610,685.20 = 153,075,794.40 : x
  2. Step 2: Convert to fraction form
    425,740,456.80/638,610,685.20 = 153,075,794.40/x
  3. Step 3: Cross multiply
    425,740,456.80x = 638,610,685.20 × 153,075,794.40
  4. Step 4: Simplify right side
    425,740,456.80x = 97,755,837,949,318,336
  5. Step 5: Solve for x
    x = 97,755,837,949,318,336/425,740,456.80
  6. Step 6: Final answer
    x = 229,613,691.60

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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.