Home / 28,011,334.92-38,655,936.78-15,788,191.92

Finding the Fourth Proportional to 28,011,334.92, 38,655,936.78 and 15,788,191.92

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Solution

The fourth proportional to 28,011,334.92, 38,655,936.78 and 15,788,191.92 is: 21,787,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,334.92 : 38,655,936.78 = 15,788,191.92 : x
  2. Step 2: Convert to fraction form
    28,011,334.92/38,655,936.78 = 15,788,191.92/x
  3. Step 3: Cross multiply
    28,011,334.92x = 38,655,936.78 × 15,788,191.92
  4. Step 4: Simplify right side
    28,011,334.92x = 610,307,348,730,026.88
  5. Step 5: Solve for x
    x = 610,307,348,730,026.88/28,011,334.92
  6. Step 6: Final answer
    x = 21,787,870.89

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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.