Home / 156,432,778.54-215,877,470.83-84,905,685.74

Finding the Fourth Proportional to 156,432,778.54, 215,877,470.83 and 84,905,685.74

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Solution

The fourth proportional to 156,432,778.54, 215,877,470.83 and 84,905,685.74 is: 117,169,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,432,778.54 : 215,877,470.83 = 84,905,685.74 : x
  2. Step 2: Convert to fraction form
    156,432,778.54/215,877,470.83 = 84,905,685.74/x
  3. Step 3: Cross multiply
    156,432,778.54x = 215,877,470.83 × 84,905,685.74
  4. Step 4: Simplify right side
    156,432,778.54x = 18,329,224,696,965,428
  5. Step 5: Solve for x
    x = 18,329,224,696,965,428/156,432,778.54
  6. Step 6: Final answer
    x = 117,169,974.66

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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.