Home / 28,028,581.74-38,679,446.43-15,805,441.98

Finding the Fourth Proportional to 28,028,581.74, 38,679,446.43 and 15,805,441.98

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Solution

The fourth proportional to 28,028,581.74, 38,679,446.43 and 15,805,441.98 is: 21,811,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028,581.74 : 38,679,446.43 = 15,805,441.98 : x
  2. Step 2: Convert to fraction form
    28,028,581.74/38,679,446.43 = 15,805,441.98/x
  3. Step 3: Cross multiply
    28,028,581.74x = 38,679,446.43 × 15,805,441.98
  4. Step 4: Simplify right side
    28,028,581.74x = 611,345,746,367,883.12
  5. Step 5: Solve for x
    x = 611,345,746,367,883.12/28,028,581.74
  6. Step 6: Final answer
    x = 21,811,511.98

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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.