Home / 18,731,808.30-28,083,715.65-10,221,753.90

Finding the Fourth Proportional to 18,731,808.30, 28,083,715.65 and 10,221,753.90

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Solution

The fourth proportional to 18,731,808.30, 28,083,715.65 and 10,221,753.90 is: 15,324,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731,808.30 : 28,083,715.65 = 10,221,753.90 : x
  2. Step 2: Convert to fraction form
    18,731,808.30/28,083,715.65 = 10,221,753.90/x
  3. Step 3: Cross multiply
    18,731,808.30x = 28,083,715.65 × 10,221,753.90
  4. Step 4: Simplify right side
    18,731,808.30x = 287,064,829,971,878.50
  5. Step 5: Solve for x
    x = 287,064,829,971,878.50/18,731,808.30
  6. Step 6: Final answer
    x = 15,324,992.94

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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.