Home / 1,119,753,005.40-1,679,629,508.10-988,239,072.60

Finding the Fourth Proportional to 1,119,753,005.40, 1,679,629,508.10 and 988,239,072.60

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Solution

The fourth proportional to 1,119,753,005.40, 1,679,629,508.10 and 988,239,072.60 is: 1,482,358,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,753,005.40 : 1,679,629,508.10 = 988,239,072.60 : x
  2. Step 2: Convert to fraction form
    1,119,753,005.40/1,679,629,508.10 = 988,239,072.60/x
  3. Step 3: Cross multiply
    1,119,753,005.40x = 1,679,629,508.10 × 988,239,072.60
  4. Step 4: Simplify right side
    1,119,753,005.40x = 1,659,875,507,396,338,176
  5. Step 5: Solve for x
    x = 1,659,875,507,396,338,176/1,119,753,005.40
  6. Step 6: Final answer
    x = 1,482,358,608.90

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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.