Home / 27,786,756.80-41,680,135.20-18,716,830.40

Finding the Fourth Proportional to 27,786,756.80, 41,680,135.20 and 18,716,830.40

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Solution

The fourth proportional to 27,786,756.80, 41,680,135.20 and 18,716,830.40 is: 28,075,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786,756.80 : 41,680,135.20 = 18,716,830.40 : x
  2. Step 2: Convert to fraction form
    27,786,756.80/41,680,135.20 = 18,716,830.40/x
  3. Step 3: Cross multiply
    27,786,756.80x = 41,680,135.20 × 18,716,830.40
  4. Step 4: Simplify right side
    27,786,756.80x = 780,120,021,587,470.12
  5. Step 5: Solve for x
    x = 780,120,021,587,470.12/27,786,756.80
  6. Step 6: Final answer
    x = 28,075,245.60

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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.