Home / 19,955,020.80-29,940,404.40-7,822,419.60

Finding the Fourth Proportional to 19,955,020.80, 29,940,404.40 and 7,822,419.60

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Solution

The fourth proportional to 19,955,020.80, 29,940,404.40 and 7,822,419.60 is: 11,736,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955,020.80 : 29,940,404.40 = 7,822,419.60 : x
  2. Step 2: Convert to fraction form
    19,955,020.80/29,940,404.40 = 7,822,419.60/x
  3. Step 3: Cross multiply
    19,955,020.80x = 29,940,404.40 × 7,822,419.60
  4. Step 4: Simplify right side
    19,955,020.80x = 234,206,406,210,486.22
  5. Step 5: Solve for x
    x = 234,206,406,210,486.22/19,955,020.80
  6. Step 6: Final answer
    x = 11,736,715.71

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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.