Home / 80,352,001.80-120,528,002.70-48,103,374.60

Finding the Fourth Proportional to 80,352,001.80, 120,528,002.70 and 48,103,374.60

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Solution

The fourth proportional to 80,352,001.80, 120,528,002.70 and 48,103,374.60 is: 72,155,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,352,001.80 : 120,528,002.70 = 48,103,374.60 : x
  2. Step 2: Convert to fraction form
    80,352,001.80/120,528,002.70 = 48,103,374.60/x
  3. Step 3: Cross multiply
    80,352,001.80x = 120,528,002.70 × 48,103,374.60
  4. Step 4: Simplify right side
    80,352,001.80x = 5,797,803,663,667,912
  5. Step 5: Solve for x
    x = 5,797,803,663,667,912/80,352,001.80
  6. Step 6: Final answer
    x = 72,155,061.90

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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.