Home / 127,864,280.40-191,512,985.40-76,845,944.40

Finding the Fourth Proportional to 127,864,280.40, 191,512,985.40 and 76,845,944.40

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Solution

The fourth proportional to 127,864,280.40, 191,512,985.40 and 76,845,944.40 is: 115,098,573.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,864,280.40 : 191,512,985.40 = 76,845,944.40 : x
  2. Step 2: Convert to fraction form
    127,864,280.40/191,512,985.40 = 76,845,944.40/x
  3. Step 3: Cross multiply
    127,864,280.40x = 191,512,985.40 × 76,845,944.40
  4. Step 4: Simplify right side
    127,864,280.40x = 14,716,996,227,926,414
  5. Step 5: Solve for x
    x = 14,716,996,227,926,414/127,864,280.40
  6. Step 6: Final answer
    x = 115,098,573.13

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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.