Home / 47,521,988.60-71,312,969.21-20,228,237.78

Finding the Fourth Proportional to 47,521,988.60, 71,312,969.21 and 20,228,237.78

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Solution

The fourth proportional to 47,521,988.60, 71,312,969.21 and 20,228,237.78 is: 30,355,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,521,988.60 : 71,312,969.21 = 20,228,237.78 : x
  2. Step 2: Convert to fraction form
    47,521,988.60/71,312,969.21 = 20,228,237.78/x
  3. Step 3: Cross multiply
    47,521,988.60x = 71,312,969.21 × 20,228,237.78
  4. Step 4: Simplify right side
    47,521,988.60x = 1,442,535,697,519,992.50
  5. Step 5: Solve for x
    x = 1,442,535,697,519,992.50/47,521,988.60
  6. Step 6: Final answer
    x = 30,355,120.65

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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.