Home / 126,762,382.83-189,896,008.92-87,363,659.84

Finding the Fourth Proportional to 126,762,382.83, 189,896,008.92 and 87,363,659.84

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Solution

The fourth proportional to 126,762,382.83, 189,896,008.92 and 87,363,659.84 is: 130,874,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,762,382.83 : 189,896,008.92 = 87,363,659.84 : x
  2. Step 2: Convert to fraction form
    126,762,382.83/189,896,008.92 = 87,363,659.84/x
  3. Step 3: Cross multiply
    126,762,382.83x = 189,896,008.92 × 87,363,659.84
  4. Step 4: Simplify right side
    126,762,382.83x = 16,590,010,327,311,004
  5. Step 5: Solve for x
    x = 16,590,010,327,311,004/126,762,382.83
  6. Step 6: Final answer
    x = 130,874,869.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.