Home / 78,376,864.38-108,162,849.02-43,097,356.58

Finding the Fourth Proportional to 78,376,864.38, 108,162,849.02 and 43,097,356.58

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Solution

The fourth proportional to 78,376,864.38, 108,162,849.02 and 43,097,356.58 is: 59,475,878.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,376,864.38 : 108,162,849.02 = 43,097,356.58 : x
  2. Step 2: Convert to fraction form
    78,376,864.38/108,162,849.02 = 43,097,356.58/x
  3. Step 3: Cross multiply
    78,376,864.38x = 108,162,849.02 × 43,097,356.58
  4. Step 4: Simplify right side
    78,376,864.38x = 4,661,532,872,775,758
  5. Step 5: Solve for x
    x = 4,661,532,872,775,758/78,376,864.38
  6. Step 6: Final answer
    x = 59,475,878.62

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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.