Home / 79,638,310,006.70-109,900,911,896.78-43,016,425,171.38

Finding the Fourth Proportional to 79,638,310,006.70, 109,900,911,896.78 and 43,016,425,171.38

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Solution

The fourth proportional to 79,638,310,006.70, 109,900,911,896.78 and 43,016,425,171.38 is: 59,362,690,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,638,310,006.70 : 109,900,911,896.78 = 43,016,425,171.38 : x
  2. Step 2: Convert to fraction form
    79,638,310,006.70/109,900,911,896.78 = 43,016,425,171.38/x
  3. Step 3: Cross multiply
    79,638,310,006.70x = 109,900,911,896.78 × 43,016,425,171.38
  4. Step 4: Simplify right side
    79,638,310,006.70x = 4,727,544,352,874,262,691,840
  5. Step 5: Solve for x
    x = 4,727,544,352,874,262,691,840/79,638,310,006.70
  6. Step 6: Final answer
    x = 59,362,690,550.27

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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.