Home / 15,377,894.78-21,220,822.77-8,408,440.94

Finding the Fourth Proportional to 15,377,894.78, 21,220,822.77 and 8,408,440.94

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Solution

The fourth proportional to 15,377,894.78, 21,220,822.77 and 8,408,440.94 is: 11,603,281.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377,894.78 : 21,220,822.77 = 8,408,440.94 : x
  2. Step 2: Convert to fraction form
    15,377,894.78/21,220,822.77 = 8,408,440.94/x
  3. Step 3: Cross multiply
    15,377,894.78x = 21,220,822.77 × 8,408,440.94
  4. Step 4: Simplify right side
    15,377,894.78x = 178,434,034,959,752.19
  5. Step 5: Solve for x
    x = 178,434,034,959,752.19/15,377,894.78
  6. Step 6: Final answer
    x = 11,603,281.04

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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.