Home / 340,707,643.20-510,389,618.40-203,986,900.80

Finding the Fourth Proportional to 340,707,643.20, 510,389,618.40 and 203,986,900.80

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Solution

The fourth proportional to 340,707,643.20, 510,389,618.40 and 203,986,900.80 is: 305,578,106.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,707,643.20 : 510,389,618.40 = 203,986,900.80 : x
  2. Step 2: Convert to fraction form
    340,707,643.20/510,389,618.40 = 203,986,900.80/x
  3. Step 3: Cross multiply
    340,707,643.20x = 510,389,618.40 × 203,986,900.80
  4. Step 4: Simplify right side
    340,707,643.20x = 104,112,796,457,910,656
  5. Step 5: Solve for x
    x = 104,112,796,457,910,656/340,707,643.20
  6. Step 6: Final answer
    x = 305,578,106.44

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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.