Home / 129,141,048.64-193,712,272.80-38,265,424.96

Finding the Fourth Proportional to 129,141,048.64, 193,712,272.80 and 38,265,424.96

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Solution

The fourth proportional to 129,141,048.64, 193,712,272.80 and 38,265,424.96 is: 57,398,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,141,048.64 : 193,712,272.80 = 38,265,424.96 : x
  2. Step 2: Convert to fraction form
    129,141,048.64/193,712,272.80 = 38,265,424.96/x
  3. Step 3: Cross multiply
    129,141,048.64x = 193,712,272.80 × 38,265,424.96
  4. Step 4: Simplify right side
    129,141,048.64x = 7,412,482,438,659,450
  5. Step 5: Solve for x
    x = 7,412,482,438,659,450/129,141,048.64
  6. Step 6: Final answer
    x = 57,398,344.81

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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.