Home / 138,600,532.30-191,268,738.38-76,720,870.86

Finding the Fourth Proportional to 138,600,532.30, 191,268,738.38 and 76,720,870.86

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Solution

The fourth proportional to 138,600,532.30, 191,268,738.38 and 76,720,870.86 is: 105,874,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,600,532.30 : 191,268,738.38 = 76,720,870.86 : x
  2. Step 2: Convert to fraction form
    138,600,532.30/191,268,738.38 = 76,720,870.86/x
  3. Step 3: Cross multiply
    138,600,532.30x = 191,268,738.38 × 76,720,870.86
  4. Step 4: Simplify right side
    138,600,532.30x = 14,674,304,176,423,502
  5. Step 5: Solve for x
    x = 14,674,304,176,423,502/138,600,532.30
  6. Step 6: Final answer
    x = 105,874,803.89

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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.