Home / 15,160,235.20-20,921,124.59-8,634,471.87

Finding the Fourth Proportional to 15,160,235.20, 20,921,124.59 and 8,634,471.87

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Solution

The fourth proportional to 15,160,235.20, 20,921,124.59 and 8,634,471.87 is: 11,915,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160,235.20 : 20,921,124.59 = 8,634,471.87 : x
  2. Step 2: Convert to fraction form
    15,160,235.20/20,921,124.59 = 8,634,471.87/x
  3. Step 3: Cross multiply
    15,160,235.20x = 20,921,124.59 × 8,634,471.87
  4. Step 4: Simplify right side
    15,160,235.20x = 180,642,861,711,100.06
  5. Step 5: Solve for x
    x = 180,642,861,711,100.06/15,160,235.20
  6. Step 6: Final answer
    x = 11,915,571.19

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1.5x scale

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.