Home / 386,988,140.40-534,023,473.24-240,307,277.68

Finding the Fourth Proportional to 386,988,140.40, 534,023,473.24 and 240,307,277.68

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Solution

The fourth proportional to 386,988,140.40, 534,023,473.24 and 240,307,277.68 is: 331,611,524.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,988,140.40 : 534,023,473.24 = 240,307,277.68 : x
  2. Step 2: Convert to fraction form
    386,988,140.40/534,023,473.24 = 240,307,277.68/x
  3. Step 3: Cross multiply
    386,988,140.40x = 534,023,473.24 × 240,307,277.68
  4. Step 4: Simplify right side
    386,988,140.40x = 128,329,727,071,522,736
  5. Step 5: Solve for x
    x = 128,329,727,071,522,736/386,988,140.40
  6. Step 6: Final answer
    x = 331,611,524.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.