Home / 80,596,948.60-120,895,422.90-20,012,674.60

Finding the Fourth Proportional to 80,596,948.60, 120,895,422.90 and 20,012,674.60

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Solution

The fourth proportional to 80,596,948.60, 120,895,422.90 and 20,012,674.60 is: 30,019,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,596,948.60 : 120,895,422.90 = 20,012,674.60 : x
  2. Step 2: Convert to fraction form
    80,596,948.60/120,895,422.90 = 20,012,674.60/x
  3. Step 3: Cross multiply
    80,596,948.60x = 120,895,422.90 × 20,012,674.60
  4. Step 4: Simplify right side
    80,596,948.60x = 2,419,440,759,127,088.50
  5. Step 5: Solve for x
    x = 2,419,440,759,127,088.50/80,596,948.60
  6. Step 6: Final answer
    x = 30,019,011.90

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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.