Home / 83,498,183.61-114,818,885.81-72,465,779.86

Finding the Fourth Proportional to 83,498,183.61, 114,818,885.81 and 72,465,779.86

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Solution

The fourth proportional to 83,498,183.61, 114,818,885.81 and 72,465,779.86 is: 99,648,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,498,183.61 : 114,818,885.81 = 72,465,779.86 : x
  2. Step 2: Convert to fraction form
    83,498,183.61/114,818,885.81 = 72,465,779.86/x
  3. Step 3: Cross multiply
    83,498,183.61x = 114,818,885.81 × 72,465,779.86
  4. Step 4: Simplify right side
    83,498,183.61x = 8,320,440,102,228,562
  5. Step 5: Solve for x
    x = 8,320,440,102,228,562/83,498,183.61
  6. Step 6: Final answer
    x = 99,648,156.91

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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.