Home / 118,573,257.20-177,859,885.80-77,889,808.40

Finding the Fourth Proportional to 118,573,257.20, 177,859,885.80 and 77,889,808.40

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Solution

The fourth proportional to 118,573,257.20, 177,859,885.80 and 77,889,808.40 is: 116,834,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,573,257.20 : 177,859,885.80 = 77,889,808.40 : x
  2. Step 2: Convert to fraction form
    118,573,257.20/177,859,885.80 = 77,889,808.40/x
  3. Step 3: Cross multiply
    118,573,257.20x = 177,859,885.80 × 77,889,808.40
  4. Step 4: Simplify right side
    118,573,257.20x = 13,853,472,427,007,882
  5. Step 5: Solve for x
    x = 13,853,472,427,007,882/118,573,257.20
  6. Step 6: Final answer
    x = 116,834,712.60

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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.