Home / 217,306,870.40-325,960,305.60-71,762,895.20

Finding the Fourth Proportional to 217,306,870.40, 325,960,305.60 and 71,762,895.20

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Solution

The fourth proportional to 217,306,870.40, 325,960,305.60 and 71,762,895.20 is: 107,644,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,306,870.40 : 325,960,305.60 = 71,762,895.20 : x
  2. Step 2: Convert to fraction form
    217,306,870.40/325,960,305.60 = 71,762,895.20/x
  3. Step 3: Cross multiply
    217,306,870.40x = 325,960,305.60 × 71,762,895.20
  4. Step 4: Simplify right side
    217,306,870.40x = 23,391,855,250,132,776
  5. Step 5: Solve for x
    x = 23,391,855,250,132,776/217,306,870.40
  6. Step 6: Final answer
    x = 107,644,342.80

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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.