Home / 155,286,776,307.97-214,279,419,109.86-90,168,474,638.54

Finding the Fourth Proportional to 155,286,776,307.97, 214,279,419,109.86 and 90,168,474,638.54

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Solution

The fourth proportional to 155,286,776,307.97, 214,279,419,109.86 and 90,168,474,638.54 is: 124,423,011,585.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,286,776,307.97 : 214,279,419,109.86 = 90,168,474,638.54 : x
  2. Step 2: Convert to fraction form
    155,286,776,307.97/214,279,419,109.86 = 90,168,474,638.54/x
  3. Step 3: Cross multiply
    155,286,776,307.97x = 214,279,419,109.86 × 90,168,474,638.54
  4. Step 4: Simplify right side
    155,286,776,307.97x = 19,321,248,367,567,423,143,936
  5. Step 5: Solve for x
    x = 19,321,248,367,567,423,143,936/155,286,776,307.97
  6. Step 6: Final answer
    x = 124,423,011,585.02

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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.