Home / 78,603,299.83-108,472,998.12-45,583,154.40

Finding the Fourth Proportional to 78,603,299.83, 108,472,998.12 and 45,583,154.40

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Solution

The fourth proportional to 78,603,299.83, 108,472,998.12 and 45,583,154.40 is: 62,905,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,603,299.83 : 108,472,998.12 = 45,583,154.40 : x
  2. Step 2: Convert to fraction form
    78,603,299.83/108,472,998.12 = 45,583,154.40/x
  3. Step 3: Cross multiply
    78,603,299.83x = 108,472,998.12 × 45,583,154.40
  4. Step 4: Simplify right side
    78,603,299.83x = 4,944,541,421,534,870
  5. Step 5: Solve for x
    x = 4,944,541,421,534,870/78,603,299.83
  6. Step 6: Final answer
    x = 62,905,010.76

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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.