Home / 220,051,853.70-330,077,780.55-66,677,981.10

Finding the Fourth Proportional to 220,051,853.70, 330,077,780.55 and 66,677,981.10

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Solution

The fourth proportional to 220,051,853.70, 330,077,780.55 and 66,677,981.10 is: 100,016,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,051,853.70 : 330,077,780.55 = 66,677,981.10 : x
  2. Step 2: Convert to fraction form
    220,051,853.70/330,077,780.55 = 66,677,981.10/x
  3. Step 3: Cross multiply
    220,051,853.70x = 330,077,780.55 × 66,677,981.10
  4. Step 4: Simplify right side
    220,051,853.70x = 22,008,920,013,042,848
  5. Step 5: Solve for x
    x = 22,008,920,013,042,848/220,051,853.70
  6. Step 6: Final answer
    x = 100,016,971.65

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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.