Home / 20,650,931.49-28,498,300.07-11,359,208.48

Finding the Fourth Proportional to 20,650,931.49, 28,498,300.07 and 11,359,208.48

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Solution

The fourth proportional to 20,650,931.49, 28,498,300.07 and 11,359,208.48 is: 15,675,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650,931.49 : 28,498,300.07 = 11,359,208.48 : x
  2. Step 2: Convert to fraction form
    20,650,931.49/28,498,300.07 = 11,359,208.48/x
  3. Step 3: Cross multiply
    20,650,931.49x = 28,498,300.07 × 11,359,208.48
  4. Step 4: Simplify right side
    20,650,931.49x = 323,718,131,820,728.62
  5. Step 5: Solve for x
    x = 323,718,131,820,728.62/20,650,931.49
  6. Step 6: Final answer
    x = 15,675,715.74

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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.