Home / 128,730,158.60-192,945,938.70-52,002,811.40

Finding the Fourth Proportional to 128,730,158.60, 192,945,938.70 and 52,002,811.40

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Solution

The fourth proportional to 128,730,158.60, 192,945,938.70 and 52,002,811.40 is: 77,943,905.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,730,158.60 : 192,945,938.70 = 52,002,811.40 : x
  2. Step 2: Convert to fraction form
    128,730,158.60/192,945,938.70 = 52,002,811.40/x
  3. Step 3: Cross multiply
    128,730,158.60x = 192,945,938.70 × 52,002,811.40
  4. Step 4: Simplify right side
    128,730,158.60x = 10,033,731,260,612,060
  5. Step 5: Solve for x
    x = 10,033,731,260,612,060/128,730,158.60
  6. Step 6: Final answer
    x = 77,943,905.06

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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.