Home / 13,490,628.42-20,243,655.90-5,708,929.76

Finding the Fourth Proportional to 13,490,628.42, 20,243,655.90 and 5,708,929.76

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Solution

The fourth proportional to 13,490,628.42, 20,243,655.90 and 5,708,929.76 is: 8,566,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490,628.42 : 20,243,655.90 = 5,708,929.76 : x
  2. Step 2: Convert to fraction form
    13,490,628.42/20,243,655.90 = 5,708,929.76/x
  3. Step 3: Cross multiply
    13,490,628.42x = 20,243,655.90 × 5,708,929.76
  4. Step 4: Simplify right side
    13,490,628.42x = 115,569,609,723,329.09
  5. Step 5: Solve for x
    x = 115,569,609,723,329.09/13,490,628.42
  6. Step 6: Final answer
    x = 8,566,658.73

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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.