Home / 21,358,111.20-32,023,016.40-11,778,079.20

Finding the Fourth Proportional to 21,358,111.20, 32,023,016.40 and 11,778,079.20

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Solution

The fourth proportional to 21,358,111.20, 32,023,016.40 and 11,778,079.20 is: 17,659,315.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358,111.20 : 32,023,016.40 = 11,778,079.20 : x
  2. Step 2: Convert to fraction form
    21,358,111.20/32,023,016.40 = 11,778,079.20/x
  3. Step 3: Cross multiply
    21,358,111.20x = 32,023,016.40 × 11,778,079.20
  4. Step 4: Simplify right side
    21,358,111.20x = 377,169,623,382,098.81
  5. Step 5: Solve for x
    x = 377,169,623,382,098.81/21,358,111.20
  6. Step 6: Final answer
    x = 17,659,315.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.