Home / 10,531,898.40-15,786,037.80-5,412,350.10

Finding the Fourth Proportional to 10,531,898.40, 15,786,037.80 and 5,412,350.10

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Solution

The fourth proportional to 10,531,898.40, 15,786,037.80 and 5,412,350.10 is: 8,112,456.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531,898.40 : 15,786,037.80 = 5,412,350.10 : x
  2. Step 2: Convert to fraction form
    10,531,898.40/15,786,037.80 = 5,412,350.10/x
  3. Step 3: Cross multiply
    10,531,898.40x = 15,786,037.80 × 5,412,350.10
  4. Step 4: Simplify right side
    10,531,898.40x = 85,439,563,265,433.78
  5. Step 5: Solve for x
    x = 85,439,563,265,433.78/10,531,898.40
  6. Step 6: Final answer
    x = 8,112,456.09

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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.