Home / 418,605,376.48-627,965,526.67-142,182,381.21

Finding the Fourth Proportional to 418,605,376.48, 627,965,526.67 and 142,182,381.21

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Solution

The fourth proportional to 418,605,376.48, 627,965,526.67 and 142,182,381.21 is: 213,293,089.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,605,376.48 : 627,965,526.67 = 142,182,381.21 : x
  2. Step 2: Convert to fraction form
    418,605,376.48/627,965,526.67 = 142,182,381.21/x
  3. Step 3: Cross multiply
    418,605,376.48x = 627,965,526.67 × 142,182,381.21
  4. Step 4: Simplify right side
    418,605,376.48x = 89,285,633,897,822,528
  5. Step 5: Solve for x
    x = 89,285,633,897,822,528/418,605,376.48
  6. Step 6: Final answer
    x = 213,293,089.18

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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.