Home / 8,320,421.80-12,480,632.70-7,374,860.20

Finding the Fourth Proportional to 8,320,421.80, 12,480,632.70 and 7,374,860.20

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Solution

The fourth proportional to 8,320,421.80, 12,480,632.70 and 7,374,860.20 is: 11,062,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,421.80 : 12,480,632.70 = 7,374,860.20 : x
  2. Step 2: Convert to fraction form
    8,320,421.80/12,480,632.70 = 7,374,860.20/x
  3. Step 3: Cross multiply
    8,320,421.80x = 12,480,632.70 × 7,374,860.20
  4. Step 4: Simplify right side
    8,320,421.80x = 92,042,921,370,048.53
  5. Step 5: Solve for x
    x = 92,042,921,370,048.53/8,320,421.80
  6. Step 6: Final answer
    x = 11,062,290.30

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1.5x scale

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.