Home / 20,564,982.48-28,363,127.95-18,078,887.55

Finding the Fourth Proportional to 20,564,982.48, 28,363,127.95 and 18,078,887.55

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Solution

The fourth proportional to 20,564,982.48, 28,363,127.95 and 18,078,887.55 is: 24,934,317.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,982.48 : 28,363,127.95 = 18,078,887.55 : x
  2. Step 2: Convert to fraction form
    20,564,982.48/28,363,127.95 = 18,078,887.55/x
  3. Step 3: Cross multiply
    20,564,982.48x = 28,363,127.95 × 18,078,887.55
  4. Step 4: Simplify right side
    20,564,982.48x = 512,773,800,774,312
  5. Step 5: Solve for x
    x = 512,773,800,774,312/20,564,982.48
  6. Step 6: Final answer
    x = 24,934,317.41

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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.