Home / 129,545,754.88-178,768,255.68-70,807,924.48

Finding the Fourth Proportional to 129,545,754.88, 178,768,255.68 and 70,807,924.48

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Solution

The fourth proportional to 129,545,754.88, 178,768,255.68 and 70,807,924.48 is: 97,712,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,545,754.88 : 178,768,255.68 = 70,807,924.48 : x
  2. Step 2: Convert to fraction form
    129,545,754.88/178,768,255.68 = 70,807,924.48/x
  3. Step 3: Cross multiply
    129,545,754.88x = 178,768,255.68 × 70,807,924.48
  4. Step 4: Simplify right side
    129,545,754.88x = 12,658,209,147,610,772
  5. Step 5: Solve for x
    x = 12,658,209,147,610,772/129,545,754.88
  6. Step 6: Final answer
    x = 97,712,265.13

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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.