Home / 31,055,240.18-42,865,938.78-20,042,011.18

Finding the Fourth Proportional to 31,055,240.18, 42,865,938.78 and 20,042,011.18

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Solution

The fourth proportional to 31,055,240.18, 42,865,938.78 and 20,042,011.18 is: 27,664,240.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,055,240.18 : 42,865,938.78 = 20,042,011.18 : x
  2. Step 2: Convert to fraction form
    31,055,240.18/42,865,938.78 = 20,042,011.18/x
  3. Step 3: Cross multiply
    31,055,240.18x = 42,865,938.78 × 20,042,011.18
  4. Step 4: Simplify right side
    31,055,240.18x = 859,119,624,269,955.62
  5. Step 5: Solve for x
    x = 859,119,624,269,955.62/31,055,240.18
  6. Step 6: Final answer
    x = 27,664,240.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.