Home / 84,200,423.10-126,300,634.65-56,990,643.90

Finding the Fourth Proportional to 84,200,423.10, 126,300,634.65 and 56,990,643.90

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Solution

The fourth proportional to 84,200,423.10, 126,300,634.65 and 56,990,643.90 is: 85,485,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,200,423.10 : 126,300,634.65 = 56,990,643.90 : x
  2. Step 2: Convert to fraction form
    84,200,423.10/126,300,634.65 = 56,990,643.90/x
  3. Step 3: Cross multiply
    84,200,423.10x = 126,300,634.65 × 56,990,643.90
  4. Step 4: Simplify right side
    84,200,423.10x = 7,197,954,493,682,151
  5. Step 5: Solve for x
    x = 7,197,954,493,682,151/84,200,423.10
  6. Step 6: Final answer
    x = 85,485,965.85

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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.