Home / 12,127,810.80-18,191,716.20-5,750,518.80

Finding the Fourth Proportional to 12,127,810.80, 18,191,716.20 and 5,750,518.80

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Solution

The fourth proportional to 12,127,810.80, 18,191,716.20 and 5,750,518.80 is: 8,625,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,810.80 : 18,191,716.20 = 5,750,518.80 : x
  2. Step 2: Convert to fraction form
    12,127,810.80/18,191,716.20 = 5,750,518.80/x
  3. Step 3: Cross multiply
    12,127,810.80x = 18,191,716.20 × 5,750,518.80
  4. Step 4: Simplify right side
    12,127,810.80x = 104,611,806,012,364.55
  5. Step 5: Solve for x
    x = 104,611,806,012,364.55/12,127,810.80
  6. Step 6: Final answer
    x = 8,625,778.20

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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.