Home / 78,645,260.54-108,576,956.86-69,919,278.17

Finding the Fourth Proportional to 78,645,260.54, 108,576,956.86 and 69,919,278.17

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Solution

The fourth proportional to 78,645,260.54, 108,576,956.86 and 69,919,278.17 is: 96,529,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,645,260.54 : 108,576,956.86 = 69,919,278.17 : x
  2. Step 2: Convert to fraction form
    78,645,260.54/108,576,956.86 = 69,919,278.17/x
  3. Step 3: Cross multiply
    78,645,260.54x = 108,576,956.86 × 69,919,278.17
  4. Step 4: Simplify right side
    78,645,260.54x = 7,591,622,448,828,748
  5. Step 5: Solve for x
    x = 7,591,622,448,828,748/78,645,260.54
  6. Step 6: Final answer
    x = 96,529,942.13

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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.