Home / 12,771,332.20-19,159,331.10-5,199,063.40

Finding the Fourth Proportional to 12,771,332.20, 19,159,331.10 and 5,199,063.40

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Solution

The fourth proportional to 12,771,332.20, 19,159,331.10 and 5,199,063.40 is: 7,799,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,332.20 : 19,159,331.10 = 5,199,063.40 : x
  2. Step 2: Convert to fraction form
    12,771,332.20/19,159,331.10 = 5,199,063.40/x
  3. Step 3: Cross multiply
    12,771,332.20x = 19,159,331.10 × 5,199,063.40
  4. Step 4: Simplify right side
    12,771,332.20x = 99,610,577,090,491.75
  5. Step 5: Solve for x
    x = 99,610,577,090,491.75/12,771,332.20
  6. Step 6: Final answer
    x = 7,799,544.76

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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.