Home / 4,977,317.60-7,465,976.40-1,987,647.20

Finding the Fourth Proportional to 4,977,317.60, 7,465,976.40 and 1,987,647.20

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Solution

The fourth proportional to 4,977,317.60, 7,465,976.40 and 1,987,647.20 is: 2,981,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977,317.60 : 7,465,976.40 = 1,987,647.20 : x
  2. Step 2: Convert to fraction form
    4,977,317.60/7,465,976.40 = 1,987,647.20/x
  3. Step 3: Cross multiply
    4,977,317.60x = 7,465,976.40 × 1,987,647.20
  4. Step 4: Simplify right side
    4,977,317.60x = 14,839,727,086,726.08
  5. Step 5: Solve for x
    x = 14,839,727,086,726.08/4,977,317.60
  6. Step 6: Final answer
    x = 2,981,470.80

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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.