Home / 72,442,065.95-99,970,772.24-39,403,083.68

Finding the Fourth Proportional to 72,442,065.95, 99,970,772.24 and 39,403,083.68

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Solution

The fourth proportional to 72,442,065.95, 99,970,772.24 and 39,403,083.68 is: 54,376,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,442,065.95 : 99,970,772.24 = 39,403,083.68 : x
  2. Step 2: Convert to fraction form
    72,442,065.95/99,970,772.24 = 39,403,083.68/x
  3. Step 3: Cross multiply
    72,442,065.95x = 99,970,772.24 × 39,403,083.68
  4. Step 4: Simplify right side
    72,442,065.95x = 3,939,156,704,126,941
  5. Step 5: Solve for x
    x = 3,939,156,704,126,941/72,442,065.95
  6. Step 6: Final answer
    x = 54,376,647.77

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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.