Home / 74,855,123.60-112,320,010.20-42,531,846.80

Finding the Fourth Proportional to 74,855,123.60, 112,320,010.20 and 42,531,846.80

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Solution

The fourth proportional to 74,855,123.60, 112,320,010.20 and 42,531,846.80 is: 63,818,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,855,123.60 : 112,320,010.20 = 42,531,846.80 : x
  2. Step 2: Convert to fraction form
    74,855,123.60/112,320,010.20 = 42,531,846.80/x
  3. Step 3: Cross multiply
    74,855,123.60x = 112,320,010.20 × 42,531,846.80
  4. Step 4: Simplify right side
    74,855,123.60x = 4,777,177,466,400,837
  5. Step 5: Solve for x
    x = 4,777,177,466,400,837/74,855,123.60
  6. Step 6: Final answer
    x = 63,818,977.74

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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.