Home / 78,603,299.32-108,472,997.42-45,583,153.90

Finding the Fourth Proportional to 78,603,299.32, 108,472,997.42 and 45,583,153.90

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Solution

The fourth proportional to 78,603,299.32, 108,472,997.42 and 45,583,153.90 is: 62,905,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,603,299.32 : 108,472,997.42 = 45,583,153.90 : x
  2. Step 2: Convert to fraction form
    78,603,299.32/108,472,997.42 = 45,583,153.90/x
  3. Step 3: Cross multiply
    78,603,299.32x = 108,472,997.42 × 45,583,153.90
  4. Step 4: Simplify right side
    78,603,299.32x = 4,944,541,335,390,163
  5. Step 5: Solve for x
    x = 4,944,541,335,390,163/78,603,299.32
  6. Step 6: Final answer
    x = 62,905,010.07

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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.