Home / 243,277,863.70-364,920,528.03-81,721,199.38

Finding the Fourth Proportional to 243,277,863.70, 364,920,528.03 and 81,721,199.38

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Solution

The fourth proportional to 243,277,863.70, 364,920,528.03 and 81,721,199.38 is: 122,583,052.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,277,863.70 : 364,920,528.03 = 81,721,199.38 : x
  2. Step 2: Convert to fraction form
    243,277,863.70/364,920,528.03 = 81,721,199.38/x
  3. Step 3: Cross multiply
    243,277,863.70x = 364,920,528.03 × 81,721,199.38
  4. Step 4: Simplify right side
    243,277,863.70x = 29,821,743,228,994,504
  5. Step 5: Solve for x
    x = 29,821,743,228,994,504/243,277,863.70
  6. Step 6: Final answer
    x = 122,583,052.87

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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.