Home / 8,413,031.60-12,594,664.20-7,920,897.20

Finding the Fourth Proportional to 8,413,031.60, 12,594,664.20 and 7,920,897.20

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Solution

The fourth proportional to 8,413,031.60, 12,594,664.20 and 7,920,897.20 is: 11,857,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413,031.60 : 12,594,664.20 = 7,920,897.20 : x
  2. Step 2: Convert to fraction form
    8,413,031.60/12,594,664.20 = 7,920,897.20/x
  3. Step 3: Cross multiply
    8,413,031.60x = 12,594,664.20 × 7,920,897.20
  4. Step 4: Simplify right side
    8,413,031.60x = 99,761,040,396,720.23
  5. Step 5: Solve for x
    x = 99,761,040,396,720.23/8,413,031.60
  6. Step 6: Final answer
    x = 11,857,918.18

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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.