Home / 215,012,965.32-296,743,082.45-122,207,423.49

Finding the Fourth Proportional to 215,012,965.32, 296,743,082.45 and 122,207,423.49

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Solution

The fourth proportional to 215,012,965.32, 296,743,082.45 and 122,207,423.49 is: 168,660,561.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,012,965.32 : 296,743,082.45 = 122,207,423.49 : x
  2. Step 2: Convert to fraction form
    215,012,965.32/296,743,082.45 = 122,207,423.49/x
  3. Step 3: Cross multiply
    215,012,965.32x = 296,743,082.45 × 122,207,423.49
  4. Step 4: Simplify right side
    215,012,965.32x = 36,264,207,544,084,096
  5. Step 5: Solve for x
    x = 36,264,207,544,084,096/215,012,965.32
  6. Step 6: Final answer
    x = 168,660,561.89

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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.