Home / 78,336,034.72-108,106,162.32-43,053,199.84

Finding the Fourth Proportional to 78,336,034.72, 108,106,162.32 and 43,053,199.84

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Solution

The fourth proportional to 78,336,034.72, 108,106,162.32 and 43,053,199.84 is: 59,414,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,336,034.72 : 108,106,162.32 = 43,053,199.84 : x
  2. Step 2: Convert to fraction form
    78,336,034.72/108,106,162.32 = 43,053,199.84/x
  3. Step 3: Cross multiply
    78,336,034.72x = 108,106,162.32 × 43,053,199.84
  4. Step 4: Simplify right side
    78,336,034.72x = 4,654,316,210,298,438
  5. Step 5: Solve for x
    x = 4,654,316,210,298,438/78,336,034.72
  6. Step 6: Final answer
    x = 59,414,753.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.