Home / 1,329,695,989.20-1,994,543,983.80-360,347,605.20

Finding the Fourth Proportional to 1,329,695,989.20, 1,994,543,983.80 and 360,347,605.20

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Solution

The fourth proportional to 1,329,695,989.20, 1,994,543,983.80 and 360,347,605.20 is: 540,521,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,695,989.20 : 1,994,543,983.80 = 360,347,605.20 : x
  2. Step 2: Convert to fraction form
    1,329,695,989.20/1,994,543,983.80 = 360,347,605.20/x
  3. Step 3: Cross multiply
    1,329,695,989.20x = 1,994,543,983.80 × 360,347,605.20
  4. Step 4: Simplify right side
    1,329,695,989.20x = 718,729,148,028,397,568
  5. Step 5: Solve for x
    x = 718,729,148,028,397,568/1,329,695,989.20
  6. Step 6: Final answer
    x = 540,521,407.80

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1.5x scale

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.