Home / 129,301,713.76-178,440,147.84-70,568,145.92

Finding the Fourth Proportional to 129,301,713.76, 178,440,147.84 and 70,568,145.92

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Solution

The fourth proportional to 129,301,713.76, 178,440,147.84 and 70,568,145.92 is: 97,386,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,301,713.76 : 178,440,147.84 = 70,568,145.92 : x
  2. Step 2: Convert to fraction form
    129,301,713.76/178,440,147.84 = 70,568,145.92/x
  3. Step 3: Cross multiply
    129,301,713.76x = 178,440,147.84 × 70,568,145.92
  4. Step 4: Simplify right side
    129,301,713.76x = 12,592,190,390,759,494
  5. Step 5: Solve for x
    x = 12,592,190,390,759,494/129,301,713.76
  6. Step 6: Final answer
    x = 97,386,105.91

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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.