Home / 8,161,590.40-12,213,355.20-7,108,201.60

Finding the Fourth Proportional to 8,161,590.40, 12,213,355.20 and 7,108,201.60

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Solution

The fourth proportional to 8,161,590.40, 12,213,355.20 and 7,108,201.60 is: 10,637,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161,590.40 : 12,213,355.20 = 7,108,201.60 : x
  2. Step 2: Convert to fraction form
    8,161,590.40/12,213,355.20 = 7,108,201.60/x
  3. Step 3: Cross multiply
    8,161,590.40x = 12,213,355.20 × 7,108,201.60
  4. Step 4: Simplify right side
    8,161,590.40x = 86,814,990,974,008.31
  5. Step 5: Solve for x
    x = 86,814,990,974,008.31/8,161,590.40
  6. Step 6: Final answer
    x = 10,637,018.86

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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.