Home / 20,956,066.10-31,371,113.55-12,432,014.90

Finding the Fourth Proportional to 20,956,066.10, 31,371,113.55 and 12,432,014.90

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Solution

The fourth proportional to 20,956,066.10, 31,371,113.55 and 12,432,014.90 is: 18,610,656.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,066.10 : 31,371,113.55 = 12,432,014.90 : x
  2. Step 2: Convert to fraction form
    20,956,066.10/31,371,113.55 = 12,432,014.90/x
  3. Step 3: Cross multiply
    20,956,066.10x = 31,371,113.55 × 12,432,014.90
  4. Step 4: Simplify right side
    20,956,066.10x = 390,006,151,083,191.94
  5. Step 5: Solve for x
    x = 390,006,151,083,191.94/20,956,066.10
  6. Step 6: Final answer
    x = 18,610,656.66

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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.