Home / 665,698,517.20-998,547,775.80-277,799,731.30

Finding the Fourth Proportional to 665,698,517.20, 998,547,775.80 and 277,799,731.30

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Solution

The fourth proportional to 665,698,517.20, 998,547,775.80 and 277,799,731.30 is: 416,699,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,698,517.20 : 998,547,775.80 = 277,799,731.30 : x
  2. Step 2: Convert to fraction form
    665,698,517.20/998,547,775.80 = 277,799,731.30/x
  3. Step 3: Cross multiply
    665,698,517.20x = 998,547,775.80 × 277,799,731.30
  4. Step 4: Simplify right side
    665,698,517.20x = 277,396,303,807,452,640
  5. Step 5: Solve for x
    x = 277,396,303,807,452,640/665,698,517.20
  6. Step 6: Final answer
    x = 416,699,596.95

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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.