Home / 12,240,547.20-18,360,820.80-7,369,660.80

Finding the Fourth Proportional to 12,240,547.20, 18,360,820.80 and 7,369,660.80

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Solution

The fourth proportional to 12,240,547.20, 18,360,820.80 and 7,369,660.80 is: 11,054,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240,547.20 : 18,360,820.80 = 7,369,660.80 : x
  2. Step 2: Convert to fraction form
    12,240,547.20/18,360,820.80 = 7,369,660.80/x
  3. Step 3: Cross multiply
    12,240,547.20x = 18,360,820.80 × 7,369,660.80
  4. Step 4: Simplify right side
    12,240,547.20x = 135,313,021,305,584.64
  5. Step 5: Solve for x
    x = 135,313,021,305,584.64/12,240,547.20
  6. Step 6: Final answer
    x = 11,054,491.20

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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.