Home / 12,631,377.60-18,947,066.40-6,891,814.80

Finding the Fourth Proportional to 12,631,377.60, 18,947,066.40 and 6,891,814.80

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Solution

The fourth proportional to 12,631,377.60, 18,947,066.40 and 6,891,814.80 is: 10,337,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631,377.60 : 18,947,066.40 = 6,891,814.80 : x
  2. Step 2: Convert to fraction form
    12,631,377.60/18,947,066.40 = 6,891,814.80/x
  3. Step 3: Cross multiply
    12,631,377.60x = 18,947,066.40 × 6,891,814.80
  4. Step 4: Simplify right side
    12,631,377.60x = 130,579,672,632,102.70
  5. Step 5: Solve for x
    x = 130,579,672,632,102.70/12,631,377.60
  6. Step 6: Final answer
    x = 10,337,722.20

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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.