Home / 8,085,320.80-12,127,981.20-6,650,430.10

Finding the Fourth Proportional to 8,085,320.80, 12,127,981.20 and 6,650,430.10

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Solution

The fourth proportional to 8,085,320.80, 12,127,981.20 and 6,650,430.10 is: 9,975,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,320.80 : 12,127,981.20 = 6,650,430.10 : x
  2. Step 2: Convert to fraction form
    8,085,320.80/12,127,981.20 = 6,650,430.10/x
  3. Step 3: Cross multiply
    8,085,320.80x = 12,127,981.20 × 6,650,430.10
  4. Step 4: Simplify right side
    8,085,320.80x = 80,656,291,224,714.11
  5. Step 5: Solve for x
    x = 80,656,291,224,714.11/8,085,320.80
  6. Step 6: Final answer
    x = 9,975,645.15

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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.