Home / 20,219,432.10-30,329,148.15-11,243,984.10

Finding the Fourth Proportional to 20,219,432.10, 30,329,148.15 and 11,243,984.10

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Solution

The fourth proportional to 20,219,432.10, 30,329,148.15 and 11,243,984.10 is: 16,865,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,432.10 : 30,329,148.15 = 11,243,984.10 : x
  2. Step 2: Convert to fraction form
    20,219,432.10/30,329,148.15 = 11,243,984.10/x
  3. Step 3: Cross multiply
    20,219,432.10x = 30,329,148.15 × 11,243,984.10
  4. Step 4: Simplify right side
    20,219,432.10x = 341,020,459,565,144.38
  5. Step 5: Solve for x
    x = 341,020,459,565,144.38/20,219,432.10
  6. Step 6: Final answer
    x = 16,865,976.15

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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.