Home / 66,864,161.80-100,288,363.02-18,346,921.48

Finding the Fourth Proportional to 66,864,161.80, 100,288,363.02 and 18,346,921.48

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Solution

The fourth proportional to 66,864,161.80, 100,288,363.02 and 18,346,921.48 is: 27,518,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864,161.80 : 100,288,363.02 = 18,346,921.48 : x
  2. Step 2: Convert to fraction form
    66,864,161.80/100,288,363.02 = 18,346,921.48/x
  3. Step 3: Cross multiply
    66,864,161.80x = 100,288,363.02 × 18,346,921.48
  4. Step 4: Simplify right side
    66,864,161.80x = 1,839,982,721,685,675.75
  5. Step 5: Solve for x
    x = 1,839,982,721,685,675.75/66,864,161.80
  6. Step 6: Final answer
    x = 27,518,220.11

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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.