Home / 1,120,367,781.10-1,679,417,930.85-660,069,016.30

Finding the Fourth Proportional to 1,120,367,781.10, 1,679,417,930.85 and 660,069,016.30

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Solution

The fourth proportional to 1,120,367,781.10, 1,679,417,930.85 and 660,069,016.30 is: 989,435,576.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,367,781.10 : 1,679,417,930.85 = 660,069,016.30 : x
  2. Step 2: Convert to fraction form
    1,120,367,781.10/1,679,417,930.85 = 660,069,016.30/x
  3. Step 3: Cross multiply
    1,120,367,781.10x = 1,679,417,930.85 × 660,069,016.30
  4. Step 4: Simplify right side
    1,120,367,781.10x = 1,108,531,741,572,740,736
  5. Step 5: Solve for x
    x = 1,108,531,741,572,740,736/1,120,367,781.10
  6. Step 6: Final answer
    x = 989,435,576.67

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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.