Home / 128,176,091,289.60-192,264,136,934.40-109,238,084,966.40

Finding the Fourth Proportional to 128,176,091,289.60, 192,264,136,934.40 and 109,238,084,966.40

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Solution

The fourth proportional to 128,176,091,289.60, 192,264,136,934.40 and 109,238,084,966.40 is: 163,857,127,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,176,091,289.60 : 192,264,136,934.40 = 109,238,084,966.40 : x
  2. Step 2: Convert to fraction form
    128,176,091,289.60/192,264,136,934.40 = 109,238,084,966.40/x
  3. Step 3: Cross multiply
    128,176,091,289.60x = 192,264,136,934.40 × 109,238,084,966.40
  4. Step 4: Simplify right side
    128,176,091,289.60x = 21,002,566,126,431,551,619,072
  5. Step 5: Solve for x
    x = 21,002,566,126,431,551,619,072/128,176,091,289.60
  6. Step 6: Final answer
    x = 163,857,127,449.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.