Home / 72,438,007.80-108,619,686.90-26,976,401.40

Finding the Fourth Proportional to 72,438,007.80, 108,619,686.90 and 26,976,401.40

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Solution

The fourth proportional to 72,438,007.80, 108,619,686.90 and 26,976,401.40 is: 40,450,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,438,007.80 : 108,619,686.90 = 26,976,401.40 : x
  2. Step 2: Convert to fraction form
    72,438,007.80/108,619,686.90 = 26,976,401.40/x
  3. Step 3: Cross multiply
    72,438,007.80x = 108,619,686.90 × 26,976,401.40
  4. Step 4: Simplify right side
    72,438,007.80x = 2,930,168,273,756,721.50
  5. Step 5: Solve for x
    x = 2,930,168,273,756,721.50/72,438,007.80
  6. Step 6: Final answer
    x = 40,450,702.09

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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.