Home / 80,385,599.75-120,585,592.80-31,200,300.08

Finding the Fourth Proportional to 80,385,599.75, 120,585,592.80 and 31,200,300.08

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Solution

The fourth proportional to 80,385,599.75, 120,585,592.80 and 31,200,300.08 is: 46,803,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,385,599.75 : 120,585,592.80 = 31,200,300.08 : x
  2. Step 2: Convert to fraction form
    80,385,599.75/120,585,592.80 = 31,200,300.08/x
  3. Step 3: Cross multiply
    80,385,599.75x = 120,585,592.80 × 31,200,300.08
  4. Step 4: Simplify right side
    80,385,599.75x = 3,762,306,680,684,687
  5. Step 5: Solve for x
    x = 3,762,306,680,684,687/80,385,599.75
  6. Step 6: Final answer
    x = 46,803,242.03

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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.