Home / 27,786,752.80-41,680,129.20-18,716,826.40

Finding the Fourth Proportional to 27,786,752.80, 41,680,129.20 and 18,716,826.40

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Solution

The fourth proportional to 27,786,752.80, 41,680,129.20 and 18,716,826.40 is: 28,075,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786,752.80 : 41,680,129.20 = 18,716,826.40 : x
  2. Step 2: Convert to fraction form
    27,786,752.80/41,680,129.20 = 18,716,826.40/x
  3. Step 3: Cross multiply
    27,786,752.80x = 41,680,129.20 × 18,716,826.40
  4. Step 4: Simplify right side
    27,786,752.80x = 780,119,742,565,970.88
  5. Step 5: Solve for x
    x = 780,119,742,565,970.88/27,786,752.80
  6. Step 6: Final answer
    x = 28,075,239.60

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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.