Home / 337,008,639.40-505,512,959.10-142,887,020.20

Finding the Fourth Proportional to 337,008,639.40, 505,512,959.10 and 142,887,020.20

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Solution

The fourth proportional to 337,008,639.40, 505,512,959.10 and 142,887,020.20 is: 214,330,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,008,639.40 : 505,512,959.10 = 142,887,020.20 : x
  2. Step 2: Convert to fraction form
    337,008,639.40/505,512,959.10 = 142,887,020.20/x
  3. Step 3: Cross multiply
    337,008,639.40x = 505,512,959.10 × 142,887,020.20
  4. Step 4: Simplify right side
    337,008,639.40x = 72,231,240,398,283,472
  5. Step 5: Solve for x
    x = 72,231,240,398,283,472/337,008,639.40
  6. Step 6: Final answer
    x = 214,330,530.30

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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.