Home / 128,006,916.47-176,650,009.73-69,269,575.17

Finding the Fourth Proportional to 128,006,916.47, 176,650,009.73 and 69,269,575.17

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Solution

The fourth proportional to 128,006,916.47, 176,650,009.73 and 69,269,575.17 is: 95,592,265.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006,916.47 : 176,650,009.73 = 69,269,575.17 : x
  2. Step 2: Convert to fraction form
    128,006,916.47/176,650,009.73 = 69,269,575.17/x
  3. Step 3: Cross multiply
    128,006,916.47x = 176,650,009.73 × 69,269,575.17
  4. Step 4: Simplify right side
    128,006,916.47x = 12,236,471,128,739,304
  5. Step 5: Solve for x
    x = 12,236,471,128,739,304/128,006,916.47
  6. Step 6: Final answer
    x = 95,592,265.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.