Home / 103,383,828.23-142,669,685.87-56,974,082.15

Finding the Fourth Proportional to 103,383,828.23, 142,669,685.87 and 56,974,082.15

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Solution

The fourth proportional to 103,383,828.23, 142,669,685.87 and 56,974,082.15 is: 78,624,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,383,828.23 : 142,669,685.87 = 56,974,082.15 : x
  2. Step 2: Convert to fraction form
    103,383,828.23/142,669,685.87 = 56,974,082.15/x
  3. Step 3: Cross multiply
    103,383,828.23x = 142,669,685.87 × 56,974,082.15
  4. Step 4: Simplify right side
    103,383,828.23x = 8,128,474,402,906,000
  5. Step 5: Solve for x
    x = 8,128,474,402,906,000/103,383,828.23
  6. Step 6: Final answer
    x = 78,624,234.97

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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.