Home / 20,564,976.35-28,363,119.54-18,078,881.38

Finding the Fourth Proportional to 20,564,976.35, 28,363,119.54 and 18,078,881.38

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Solution

The fourth proportional to 20,564,976.35, 28,363,119.54 and 18,078,881.38 is: 24,934,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,976.35 : 28,363,119.54 = 18,078,881.38 : x
  2. Step 2: Convert to fraction form
    20,564,976.35/28,363,119.54 = 18,078,881.38/x
  3. Step 3: Cross multiply
    20,564,976.35x = 28,363,119.54 × 18,078,881.38
  4. Step 4: Simplify right side
    20,564,976.35x = 512,773,473,659,512.38
  5. Step 5: Solve for x
    x = 512,773,473,659,512.38/20,564,976.35
  6. Step 6: Final answer
    x = 24,934,308.95

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1.5x scale

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.