Home / 128,002,048.62-176,643,134.14-69,265,344.01

Finding the Fourth Proportional to 128,002,048.62, 176,643,134.14 and 69,265,344.01

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Solution

The fourth proportional to 128,002,048.62, 176,643,134.14 and 69,265,344.01 is: 95,586,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,002,048.62 : 176,643,134.14 = 69,265,344.01 : x
  2. Step 2: Convert to fraction form
    128,002,048.62/176,643,134.14 = 69,265,344.01/x
  3. Step 3: Cross multiply
    128,002,048.62x = 176,643,134.14 × 69,265,344.01
  4. Step 4: Simplify right side
    128,002,048.62x = 12,235,247,454,133,834
  5. Step 5: Solve for x
    x = 12,235,247,454,133,834/128,002,048.62
  6. Step 6: Final answer
    x = 95,586,340.89

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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.