Home / 15,868,088,435.20-21,897,304,469.60-8,634,165,780.80

Finding the Fourth Proportional to 15,868,088,435.20, 21,897,304,469.60 and 8,634,165,780.80

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Solution

The fourth proportional to 15,868,088,435.20, 21,897,304,469.60 and 8,634,165,780.80 is: 11,914,790,979.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868,088,435.20 : 21,897,304,469.60 = 8,634,165,780.80 : x
  2. Step 2: Convert to fraction form
    15,868,088,435.20/21,897,304,469.60 = 8,634,165,780.80/x
  3. Step 3: Cross multiply
    15,868,088,435.20x = 21,897,304,469.60 × 8,634,165,780.80
  4. Step 4: Simplify right side
    15,868,088,435.20x = 189,064,956,943,179,186,176
  5. Step 5: Solve for x
    x = 189,064,956,943,179,186,176/15,868,088,435.20
  6. Step 6: Final answer
    x = 11,914,790,979.09

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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.