Home / 128,002,047.52-176,643,132.63-69,265,342.92

Finding the Fourth Proportional to 128,002,047.52, 176,643,132.63 and 69,265,342.92

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Solution

The fourth proportional to 128,002,047.52, 176,643,132.63 and 69,265,342.92 is: 95,586,339.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,002,047.52 : 176,643,132.63 = 69,265,342.92 : x
  2. Step 2: Convert to fraction form
    128,002,047.52/176,643,132.63 = 69,265,342.92/x
  3. Step 3: Cross multiply
    128,002,047.52x = 176,643,132.63 × 69,265,342.92
  4. Step 4: Simplify right side
    128,002,047.52x = 12,235,247,155,090,162
  5. Step 5: Solve for x
    x = 12,235,247,155,090,162/128,002,047.52
  6. Step 6: Final answer
    x = 95,586,339.38

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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.