Home / 418,246,557.70-627,236,734.68-138,075,306.16

Finding the Fourth Proportional to 418,246,557.70, 627,236,734.68 and 138,075,306.16

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Solution

The fourth proportional to 418,246,557.70, 627,236,734.68 and 138,075,306.16 is: 207,069,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,246,557.70 : 627,236,734.68 = 138,075,306.16 : x
  2. Step 2: Convert to fraction form
    418,246,557.70/627,236,734.68 = 138,075,306.16/x
  3. Step 3: Cross multiply
    418,246,557.70x = 627,236,734.68 × 138,075,306.16
  4. Step 4: Simplify right side
    418,246,557.70x = 86,605,904,175,739,680
  5. Step 5: Solve for x
    x = 86,605,904,175,739,680/418,246,557.70
  6. Step 6: Final answer
    x = 207,069,018.46

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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.