Home / 129,669,818.66-178,945,769.52-70,932,484.35

Finding the Fourth Proportional to 129,669,818.66, 178,945,769.52 and 70,932,484.35

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Solution

The fourth proportional to 129,669,818.66, 178,945,769.52 and 70,932,484.35 is: 97,887,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,669,818.66 : 178,945,769.52 = 70,932,484.35 : x
  2. Step 2: Convert to fraction form
    129,669,818.66/178,945,769.52 = 70,932,484.35/x
  3. Step 3: Cross multiply
    129,669,818.66x = 178,945,769.52 × 70,932,484.35
  4. Step 4: Simplify right side
    129,669,818.66x = 12,693,067,995,976,106
  5. Step 5: Solve for x
    x = 12,693,067,995,976,106/129,669,818.66
  6. Step 6: Final answer
    x = 97,887,605.05

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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.