Home / 1,010,121,673.10-1,515,182,509.65-665,464,469.90

Finding the Fourth Proportional to 1,010,121,673.10, 1,515,182,509.65 and 665,464,469.90

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Solution

The fourth proportional to 1,010,121,673.10, 1,515,182,509.65 and 665,464,469.90 is: 998,196,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,121,673.10 : 1,515,182,509.65 = 665,464,469.90 : x
  2. Step 2: Convert to fraction form
    1,010,121,673.10/1,515,182,509.65 = 665,464,469.90/x
  3. Step 3: Cross multiply
    1,010,121,673.10x = 1,515,182,509.65 × 665,464,469.90
  4. Step 4: Simplify right side
    1,010,121,673.10x = 1,008,300,125,585,988,864
  5. Step 5: Solve for x
    x = 1,008,300,125,585,988,864/1,010,121,673.10
  6. Step 6: Final answer
    x = 998,196,704.85

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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.