Home / 129,461,310.85-178,659,242.62-70,727,780.13

Finding the Fourth Proportional to 129,461,310.85, 178,659,242.62 and 70,727,780.13

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Solution

The fourth proportional to 129,461,310.85, 178,659,242.62 and 70,727,780.13 is: 97,605,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,461,310.85 : 178,659,242.62 = 70,727,780.13 : x
  2. Step 2: Convert to fraction form
    129,461,310.85/178,659,242.62 = 70,727,780.13/x
  3. Step 3: Cross multiply
    129,461,310.85x = 178,659,242.62 × 70,727,780.13
  4. Step 4: Simplify right side
    129,461,310.85x = 12,636,171,630,219,684
  5. Step 5: Solve for x
    x = 12,636,171,630,219,684/129,461,310.85
  6. Step 6: Final answer
    x = 97,605,775.40

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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.