Home / 12,129,144.20-18,100,888.24-10,835,220.30

Finding the Fourth Proportional to 12,129,144.20, 18,100,888.24 and 10,835,220.30

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Solution

The fourth proportional to 12,129,144.20, 18,100,888.24 and 10,835,220.30 is: 16,169,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,144.20 : 18,100,888.24 = 10,835,220.30 : x
  2. Step 2: Convert to fraction form
    12,129,144.20/18,100,888.24 = 10,835,220.30/x
  3. Step 3: Cross multiply
    12,129,144.20x = 18,100,888.24 × 10,835,220.30
  4. Step 4: Simplify right side
    12,129,144.20x = 196,127,111,706,079.28
  5. Step 5: Solve for x
    x = 196,127,111,706,079.28/12,129,144.20
  6. Step 6: Final answer
    x = 16,169,905.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.