Home / 15,000,505.96-20,700,704.10-8,124,966.76

Finding the Fourth Proportional to 15,000,505.96, 20,700,704.10 and 8,124,966.76

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Solution

The fourth proportional to 15,000,505.96, 20,700,704.10 and 8,124,966.76 is: 11,212,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000,505.96 : 20,700,704.10 = 8,124,966.76 : x
  2. Step 2: Convert to fraction form
    15,000,505.96/20,700,704.10 = 8,124,966.76/x
  3. Step 3: Cross multiply
    15,000,505.96x = 20,700,704.10 × 8,124,966.76
  4. Step 4: Simplify right side
    15,000,505.96x = 168,192,532,721,095.72
  5. Step 5: Solve for x
    x = 168,192,532,721,095.72/15,000,505.96
  6. Step 6: Final answer
    x = 11,212,457.31

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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.