Home / 13,971,267.90-20,956,901.85-13,309,919.10

Finding the Fourth Proportional to 13,971,267.90, 20,956,901.85 and 13,309,919.10

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Solution

The fourth proportional to 13,971,267.90, 20,956,901.85 and 13,309,919.10 is: 19,964,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971,267.90 : 20,956,901.85 = 13,309,919.10 : x
  2. Step 2: Convert to fraction form
    13,971,267.90/20,956,901.85 = 13,309,919.10/x
  3. Step 3: Cross multiply
    13,971,267.90x = 20,956,901.85 × 13,309,919.10
  4. Step 4: Simplify right side
    13,971,267.90x = 278,934,668,210,140.34
  5. Step 5: Solve for x
    x = 278,934,668,210,140.34/13,971,267.90
  6. Step 6: Final answer
    x = 19,964,878.65

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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.