Home / 103,230,513.40-142,452,687.52-56,811,895.24

Finding the Fourth Proportional to 103,230,513.40, 142,452,687.52 and 56,811,895.24

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Solution

The fourth proportional to 103,230,513.40, 142,452,687.52 and 56,811,895.24 is: 78,397,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,230,513.40 : 142,452,687.52 = 56,811,895.24 : x
  2. Step 2: Convert to fraction form
    103,230,513.40/142,452,687.52 = 56,811,895.24/x
  3. Step 3: Cross multiply
    103,230,513.40x = 142,452,687.52 × 56,811,895.24
  4. Step 4: Simplify right side
    103,230,513.40x = 8,093,007,160,042,696
  5. Step 5: Solve for x
    x = 8,093,007,160,042,696/103,230,513.40
  6. Step 6: Final answer
    x = 78,397,432.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.