Home / 75,029,418.72-103,540,597.86-40,690,602.72

Finding the Fourth Proportional to 75,029,418.72, 103,540,597.86 and 40,690,602.72

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Solution

The fourth proportional to 75,029,418.72, 103,540,597.86 and 40,690,602.72 is: 56,153,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,029,418.72 : 103,540,597.86 = 40,690,602.72 : x
  2. Step 2: Convert to fraction form
    75,029,418.72/103,540,597.86 = 40,690,602.72/x
  3. Step 3: Cross multiply
    75,029,418.72x = 103,540,597.86 × 40,690,602.72
  4. Step 4: Simplify right side
    75,029,418.72x = 4,213,129,332,912,542
  5. Step 5: Solve for x
    x = 4,213,129,332,912,542/75,029,418.72
  6. Step 6: Final answer
    x = 56,153,031.77

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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.