Home / 20,564,981.48-28,363,126.57-18,078,886.55

Finding the Fourth Proportional to 20,564,981.48, 28,363,126.57 and 18,078,886.55

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Solution

The fourth proportional to 20,564,981.48, 28,363,126.57 and 18,078,886.55 is: 24,934,316.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,981.48 : 28,363,126.57 = 18,078,886.55 : x
  2. Step 2: Convert to fraction form
    20,564,981.48/28,363,126.57 = 18,078,886.55/x
  3. Step 3: Cross multiply
    20,564,981.48x = 28,363,126.57 × 18,078,886.55
  4. Step 4: Simplify right side
    20,564,981.48x = 512,773,747,488,031.19
  5. Step 5: Solve for x
    x = 512,773,747,488,031.19/20,564,981.48
  6. Step 6: Final answer
    x = 24,934,316.03

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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.