Home / 31,455,716.29-43,386,528.08-20,996,459.17

Finding the Fourth Proportional to 31,455,716.29, 43,386,528.08 and 20,996,459.17

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Solution

The fourth proportional to 31,455,716.29, 43,386,528.08 and 20,996,459.17 is: 28,960,188.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,716.29 : 43,386,528.08 = 20,996,459.17 : x
  2. Step 2: Convert to fraction form
    31,455,716.29/43,386,528.08 = 20,996,459.17/x
  3. Step 3: Cross multiply
    31,455,716.29x = 43,386,528.08 × 20,996,459.17
  4. Step 4: Simplify right side
    31,455,716.29x = 910,963,465,142,845.75
  5. Step 5: Solve for x
    x = 910,963,465,142,845.75/31,455,716.29
  6. Step 6: Final answer
    x = 28,960,188.25

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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.