Home / 20,287,063.40-27,999,018.42-12,554,596.76

Finding the Fourth Proportional to 20,287,063.40, 27,999,018.42 and 12,554,596.76

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Solution

The fourth proportional to 20,287,063.40, 27,999,018.42 and 12,554,596.76 is: 17,327,120.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287,063.40 : 27,999,018.42 = 12,554,596.76 : x
  2. Step 2: Convert to fraction form
    20,287,063.40/27,999,018.42 = 12,554,596.76/x
  3. Step 3: Cross multiply
    20,287,063.40x = 27,999,018.42 × 12,554,596.76
  4. Step 4: Simplify right side
    20,287,063.40x = 351,516,385,938,912.31
  5. Step 5: Solve for x
    x = 351,516,385,938,912.31/20,287,063.40
  6. Step 6: Final answer
    x = 17,327,120.20

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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.