Home / 83,984,686.40-125,958,124.20-30,131,998.40

Finding the Fourth Proportional to 83,984,686.40, 125,958,124.20 and 30,131,998.40

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Solution

The fourth proportional to 83,984,686.40, 125,958,124.20 and 30,131,998.40 is: 45,191,214.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,984,686.40 : 125,958,124.20 = 30,131,998.40 : x
  2. Step 2: Convert to fraction form
    83,984,686.40/125,958,124.20 = 30,131,998.40/x
  3. Step 3: Cross multiply
    83,984,686.40x = 125,958,124.20 × 30,131,998.40
  4. Step 4: Simplify right side
    83,984,686.40x = 3,795,369,996,861,401
  5. Step 5: Solve for x
    x = 3,795,369,996,861,401/83,984,686.40
  6. Step 6: Final answer
    x = 45,191,214.73

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1.5x scale

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.