Home / 129,250,095.12-178,365,709.80-70,512,582.24

Finding the Fourth Proportional to 129,250,095.12, 178,365,709.80 and 70,512,582.24

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Solution

The fourth proportional to 129,250,095.12, 178,365,709.80 and 70,512,582.24 is: 97,307,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,250,095.12 : 178,365,709.80 = 70,512,582.24 : x
  2. Step 2: Convert to fraction form
    129,250,095.12/178,365,709.80 = 70,512,582.24/x
  3. Step 3: Cross multiply
    129,250,095.12x = 178,365,709.80 × 70,512,582.24
  4. Step 4: Simplify right side
    129,250,095.12x = 12,577,026,781,068,474
  5. Step 5: Solve for x
    x = 12,577,026,781,068,474/129,250,095.12
  6. Step 6: Final answer
    x = 97,307,679.11

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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.