Home / 18,681,576.17-28,026,147.04-7,898,859.72

Finding the Fourth Proportional to 18,681,576.17, 28,026,147.04 and 7,898,859.72

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Solution

The fourth proportional to 18,681,576.17, 28,026,147.04 and 7,898,859.72 is: 11,849,889.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,576.17 : 28,026,147.04 = 7,898,859.72 : x
  2. Step 2: Convert to fraction form
    18,681,576.17/28,026,147.04 = 7,898,859.72/x
  3. Step 3: Cross multiply
    18,681,576.17x = 28,026,147.04 × 7,898,859.72
  4. Step 4: Simplify right side
    18,681,576.17x = 221,374,603,941,306.09
  5. Step 5: Solve for x
    x = 221,374,603,941,306.09/18,681,576.17
  6. Step 6: Final answer
    x = 11,849,889.00

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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.