Home / 21,138,769.95-31,700,377.38-7,302,208.71

Finding the Fourth Proportional to 21,138,769.95, 31,700,377.38 and 7,302,208.71

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Solution

The fourth proportional to 21,138,769.95, 31,700,377.38 and 7,302,208.71 is: 10,950,626.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,769.95 : 31,700,377.38 = 7,302,208.71 : x
  2. Step 2: Convert to fraction form
    21,138,769.95/31,700,377.38 = 7,302,208.71/x
  3. Step 3: Cross multiply
    21,138,769.95x = 31,700,377.38 × 7,302,208.71
  4. Step 4: Simplify right side
    21,138,769.95x = 231,482,771,814,522.97
  5. Step 5: Solve for x
    x = 231,482,771,814,522.97/21,138,769.95
  6. Step 6: Final answer
    x = 10,950,626.38

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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.