Home / 155,286,776,306.47-214,279,419,107.80-90,168,474,637.04

Finding the Fourth Proportional to 155,286,776,306.47, 214,279,419,107.80 and 90,168,474,637.04

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Solution

The fourth proportional to 155,286,776,306.47, 214,279,419,107.80 and 90,168,474,637.04 is: 124,423,011,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,286,776,306.47 : 214,279,419,107.80 = 90,168,474,637.04 : x
  2. Step 2: Convert to fraction form
    155,286,776,306.47/214,279,419,107.80 = 90,168,474,637.04/x
  3. Step 3: Cross multiply
    155,286,776,306.47x = 214,279,419,107.80 × 90,168,474,637.04
  4. Step 4: Simplify right side
    155,286,776,306.47x = 19,321,248,367,060,898,021,376
  5. Step 5: Solve for x
    x = 19,321,248,367,060,898,021,376/155,286,776,306.47
  6. Step 6: Final answer
    x = 124,423,011,582.96

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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.