Home / 78,156,013.59-107,868,209.49-43,359,914.12

Finding the Fourth Proportional to 78,156,013.59, 107,868,209.49 and 43,359,914.12

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Solution

The fourth proportional to 78,156,013.59, 107,868,209.49 and 43,359,914.12 is: 59,843,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,156,013.59 : 107,868,209.49 = 43,359,914.12 : x
  2. Step 2: Convert to fraction form
    78,156,013.59/107,868,209.49 = 43,359,914.12/x
  3. Step 3: Cross multiply
    78,156,013.59x = 107,868,209.49 × 43,359,914.12
  4. Step 4: Simplify right side
    78,156,013.59x = 4,677,156,299,225,228
  5. Step 5: Solve for x
    x = 4,677,156,299,225,228/78,156,013.59
  6. Step 6: Final answer
    x = 59,843,844.18

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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.