Home / 31,959,095.40-47,938,643.10-20,479,969.80

Finding the Fourth Proportional to 31,959,095.40, 47,938,643.10 and 20,479,969.80

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Solution

The fourth proportional to 31,959,095.40, 47,938,643.10 and 20,479,969.80 is: 30,719,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,959,095.40 : 47,938,643.10 = 20,479,969.80 : x
  2. Step 2: Convert to fraction form
    31,959,095.40/47,938,643.10 = 20,479,969.80/x
  3. Step 3: Cross multiply
    31,959,095.40x = 47,938,643.10 × 20,479,969.80
  4. Step 4: Simplify right side
    31,959,095.40x = 981,781,962,940,978.50
  5. Step 5: Solve for x
    x = 981,781,962,940,978.50/31,959,095.40
  6. Step 6: Final answer
    x = 30,719,954.70

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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.