Home / 31,875,640.40-47,756,436.60-19,389,112.40

Finding the Fourth Proportional to 31,875,640.40, 47,756,436.60 and 19,389,112.40

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Solution

The fourth proportional to 31,875,640.40, 47,756,436.60 and 19,389,112.40 is: 29,048,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,875,640.40 : 47,756,436.60 = 19,389,112.40 : x
  2. Step 2: Convert to fraction form
    31,875,640.40/47,756,436.60 = 19,389,112.40/x
  3. Step 3: Cross multiply
    31,875,640.40x = 47,756,436.60 × 19,389,112.40
  4. Step 4: Simplify right side
    31,875,640.40x = 925,954,917,060,873.75
  5. Step 5: Solve for x
    x = 925,954,917,060,873.75/31,875,640.40
  6. Step 6: Final answer
    x = 29,048,982.40

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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.