Home / 15,348,343.15-21,180,663.93-8,379,106.85

Finding the Fourth Proportional to 15,348,343.15, 21,180,663.93 and 8,379,106.85

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Solution

The fourth proportional to 15,348,343.15, 21,180,663.93 and 8,379,106.85 is: 11,563,140.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348,343.15 : 21,180,663.93 = 8,379,106.85 : x
  2. Step 2: Convert to fraction form
    15,348,343.15/21,180,663.93 = 8,379,106.85/x
  3. Step 3: Cross multiply
    15,348,343.15x = 21,180,663.93 × 8,379,106.85
  4. Step 4: Simplify right side
    15,348,343.15x = 177,475,046,207,408.97
  5. Step 5: Solve for x
    x = 177,475,046,207,408.97/15,348,343.15
  6. Step 6: Final answer
    x = 11,563,140.36

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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.