Home / 128,951,808.30-193,427,712.45-113,835,264.30

Finding the Fourth Proportional to 128,951,808.30, 193,427,712.45 and 113,835,264.30

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Solution

The fourth proportional to 128,951,808.30, 193,427,712.45 and 113,835,264.30 is: 170,752,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,951,808.30 : 193,427,712.45 = 113,835,264.30 : x
  2. Step 2: Convert to fraction form
    128,951,808.30/193,427,712.45 = 113,835,264.30/x
  3. Step 3: Cross multiply
    128,951,808.30x = 193,427,712.45 × 113,835,264.30
  4. Step 4: Simplify right side
    128,951,808.30x = 22,018,894,769,690,148
  5. Step 5: Solve for x
    x = 22,018,894,769,690,148/128,951,808.30
  6. Step 6: Final answer
    x = 170,752,896.45

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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.