Home / 191,165,940.17-286,748,989.45-85,998,443.50

Finding the Fourth Proportional to 191,165,940.17, 286,748,989.45 and 85,998,443.50

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Solution

The fourth proportional to 191,165,940.17, 286,748,989.45 and 85,998,443.50 is: 128,997,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,165,940.17 : 286,748,989.45 = 85,998,443.50 : x
  2. Step 2: Convert to fraction form
    191,165,940.17/286,748,989.45 = 85,998,443.50/x
  3. Step 3: Cross multiply
    191,165,940.17x = 286,748,989.45 × 85,998,443.50
  4. Step 4: Simplify right side
    191,165,940.17x = 24,659,966,767,897,920
  5. Step 5: Solve for x
    x = 24,659,966,767,897,920/191,165,940.17
  6. Step 6: Final answer
    x = 128,997,700.88

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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.