Home / 19,215,350.80-28,823,026.20-18,386,040.40

Finding the Fourth Proportional to 19,215,350.80, 28,823,026.20 and 18,386,040.40

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Solution

The fourth proportional to 19,215,350.80, 28,823,026.20 and 18,386,040.40 is: 27,579,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215,350.80 : 28,823,026.20 = 18,386,040.40 : x
  2. Step 2: Convert to fraction form
    19,215,350.80/28,823,026.20 = 18,386,040.40/x
  3. Step 3: Cross multiply
    19,215,350.80x = 28,823,026.20 × 18,386,040.40
  4. Step 4: Simplify right side
    19,215,350.80x = 529,941,324,163,458.44
  5. Step 5: Solve for x
    x = 529,941,324,163,458.44/19,215,350.80
  6. Step 6: Final answer
    x = 27,579,060.60

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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.