Home / 19,960,279.80-29,940,419.70-7,181,201.40

Finding the Fourth Proportional to 19,960,279.80, 29,940,419.70 and 7,181,201.40

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Solution

The fourth proportional to 19,960,279.80, 29,940,419.70 and 7,181,201.40 is: 10,771,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960,279.80 : 29,940,419.70 = 7,181,201.40 : x
  2. Step 2: Convert to fraction form
    19,960,279.80/29,940,419.70 = 7,181,201.40/x
  3. Step 3: Cross multiply
    19,960,279.80x = 29,940,419.70 × 7,181,201.40
  4. Step 4: Simplify right side
    19,960,279.80x = 215,008,183,866,227.59
  5. Step 5: Solve for x
    x = 215,008,183,866,227.59/19,960,279.80
  6. Step 6: Final answer
    x = 10,771,802.10

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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.