Home / 31,172,122,220.27-43,017,867,251.16-18,312,304,195.96

Finding the Fourth Proportional to 31,172,122,220.27, 43,017,867,251.16 and 18,312,304,195.96

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Solution

The fourth proportional to 31,172,122,220.27, 43,017,867,251.16 and 18,312,304,195.96 is: 25,271,178,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,172,122,220.27 : 43,017,867,251.16 = 18,312,304,195.96 : x
  2. Step 2: Convert to fraction form
    31,172,122,220.27/43,017,867,251.16 = 18,312,304,195.96/x
  3. Step 3: Cross multiply
    31,172,122,220.27x = 43,017,867,251.16 × 18,312,304,195.96
  4. Step 4: Simplify right side
    31,172,122,220.27x = 787,756,270,964,526,546,944
  5. Step 5: Solve for x
    x = 787,756,270,964,526,546,944/31,172,122,220.27
  6. Step 6: Final answer
    x = 25,271,178,696.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.