Home / 80,866,005.12-121,353,586.20-31,675,756.96

Finding the Fourth Proportional to 80,866,005.12, 121,353,586.20 and 31,675,756.96

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Solution

The fourth proportional to 80,866,005.12, 121,353,586.20 and 31,675,756.96 is: 47,535,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,866,005.12 : 121,353,586.20 = 31,675,756.96 : x
  2. Step 2: Convert to fraction form
    80,866,005.12/121,353,586.20 = 31,675,756.96/x
  3. Step 3: Cross multiply
    80,866,005.12x = 121,353,586.20 × 31,675,756.96
  4. Step 4: Simplify right side
    80,866,005.12x = 3,843,966,702,537,231
  5. Step 5: Solve for x
    x = 3,843,966,702,537,231/80,866,005.12
  6. Step 6: Final answer
    x = 47,535,014.21

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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.