Home / 80,459,219.70-120,688,829.55-31,948,643.70

Finding the Fourth Proportional to 80,459,219.70, 120,688,829.55 and 31,948,643.70

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Solution

The fourth proportional to 80,459,219.70, 120,688,829.55 and 31,948,643.70 is: 47,922,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,459,219.70 : 120,688,829.55 = 31,948,643.70 : x
  2. Step 2: Convert to fraction form
    80,459,219.70/120,688,829.55 = 31,948,643.70/x
  3. Step 3: Cross multiply
    80,459,219.70x = 120,688,829.55 × 31,948,643.70
  4. Step 4: Simplify right side
    80,459,219.70x = 3,855,844,413,862,981
  5. Step 5: Solve for x
    x = 3,855,844,413,862,981/80,459,219.70
  6. Step 6: Final answer
    x = 47,922,965.55

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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.