Home / 238,862,153,507.95-329,629,759,234.55-128,996,488,991.96

Finding the Fourth Proportional to 238,862,153,507.95, 329,629,759,234.55 and 128,996,488,991.96

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Solution

The fourth proportional to 238,862,153,507.95, 329,629,759,234.55 and 128,996,488,991.96 is: 178,015,148,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862,153,507.95 : 329,629,759,234.55 = 128,996,488,991.96 : x
  2. Step 2: Convert to fraction form
    238,862,153,507.95/329,629,759,234.55 = 128,996,488,991.96/x
  3. Step 3: Cross multiply
    238,862,153,507.95x = 329,629,759,234.55 × 128,996,488,991.96
  4. Step 4: Simplify right side
    238,862,153,507.95x = 42,521,081,608,522,055,024,640
  5. Step 5: Solve for x
    x = 42,521,081,608,522,055,024,640/238,862,153,507.95
  6. Step 6: Final answer
    x = 178,015,148,000.86

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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.