Home / 20,921,604.60-31,382,406.90-7,453,572.60

Finding the Fourth Proportional to 20,921,604.60, 31,382,406.90 and 7,453,572.60

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Solution

The fourth proportional to 20,921,604.60, 31,382,406.90 and 7,453,572.60 is: 11,180,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,921,604.60 : 31,382,406.90 = 7,453,572.60 : x
  2. Step 2: Convert to fraction form
    20,921,604.60/31,382,406.90 = 7,453,572.60/x
  3. Step 3: Cross multiply
    20,921,604.60x = 31,382,406.90 × 7,453,572.60
  4. Step 4: Simplify right side
    20,921,604.60x = 233,911,048,191,890.91
  5. Step 5: Solve for x
    x = 233,911,048,191,890.91/20,921,604.60
  6. Step 6: Final answer
    x = 11,180,358.90

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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.