Home / 42,769,499.20-64,168,936.80-12,481,806.40

Finding the Fourth Proportional to 42,769,499.20, 64,168,936.80 and 12,481,806.40

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Solution

The fourth proportional to 42,769,499.20, 64,168,936.80 and 12,481,806.40 is: 18,726,996.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,769,499.20 : 64,168,936.80 = 12,481,806.40 : x
  2. Step 2: Convert to fraction form
    42,769,499.20/64,168,936.80 = 12,481,806.40/x
  3. Step 3: Cross multiply
    42,769,499.20x = 64,168,936.80 × 12,481,806.40
  4. Step 4: Simplify right side
    42,769,499.20x = 800,944,246,031,435.50
  5. Step 5: Solve for x
    x = 800,944,246,031,435.50/42,769,499.20
  6. Step 6: Final answer
    x = 18,726,996.13

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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.