Home / 19,341,127.80-29,018,834.10-7,982,561.40

Finding the Fourth Proportional to 19,341,127.80, 29,018,834.10 and 7,982,561.40

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Solution

The fourth proportional to 19,341,127.80, 29,018,834.10 and 7,982,561.40 is: 11,976,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,341,127.80 : 29,018,834.10 = 7,982,561.40 : x
  2. Step 2: Convert to fraction form
    19,341,127.80/29,018,834.10 = 7,982,561.40/x
  3. Step 3: Cross multiply
    19,341,127.80x = 29,018,834.10 × 7,982,561.40
  4. Step 4: Simplify right side
    19,341,127.80x = 231,644,624,959,663.75
  5. Step 5: Solve for x
    x = 231,644,624,959,663.75/19,341,127.80
  6. Step 6: Final answer
    x = 11,976,789.94

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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.