Home / 72,115,756.11-108,172,689.28-17,528,183.05

Finding the Fourth Proportional to 72,115,756.11, 108,172,689.28 and 17,528,183.05

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Solution

The fourth proportional to 72,115,756.11, 108,172,689.28 and 17,528,183.05 is: 26,292,044.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,115,756.11 : 108,172,689.28 = 17,528,183.05 : x
  2. Step 2: Convert to fraction form
    72,115,756.11/108,172,689.28 = 17,528,183.05/x
  3. Step 3: Cross multiply
    72,115,756.11x = 108,172,689.28 × 17,528,183.05
  4. Step 4: Simplify right side
    72,115,756.11x = 1,896,070,698,710,612.75
  5. Step 5: Solve for x
    x = 1,896,070,698,710,612.75/72,115,756.11
  6. Step 6: Final answer
    x = 26,292,044.91

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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.