Home / 30,981,900.36-42,755,572.26-17,230,870.56

Finding the Fourth Proportional to 30,981,900.36, 42,755,572.26 and 17,230,870.56

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Solution

The fourth proportional to 30,981,900.36, 42,755,572.26 and 17,230,870.56 is: 23,778,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981,900.36 : 42,755,572.26 = 17,230,870.56 : x
  2. Step 2: Convert to fraction form
    30,981,900.36/42,755,572.26 = 17,230,870.56/x
  3. Step 3: Cross multiply
    30,981,900.36x = 42,755,572.26 × 17,230,870.56
  4. Step 4: Simplify right side
    30,981,900.36x = 736,715,731,330,786.62
  5. Step 5: Solve for x
    x = 736,715,731,330,786.62/30,981,900.36
  6. Step 6: Final answer
    x = 23,778,907.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.