Home / 38,851,938.40-58,294,237.20-20,880,047.20

Finding the Fourth Proportional to 38,851,938.40, 58,294,237.20 and 20,880,047.20

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Solution

The fourth proportional to 38,851,938.40, 58,294,237.20 and 20,880,047.20 is: 31,328,846.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,851,938.40 : 58,294,237.20 = 20,880,047.20 : x
  2. Step 2: Convert to fraction form
    38,851,938.40/58,294,237.20 = 20,880,047.20/x
  3. Step 3: Cross multiply
    38,851,938.40x = 58,294,237.20 × 20,880,047.20
  4. Step 4: Simplify right side
    38,851,938.40x = 1,217,186,424,223,995.75
  5. Step 5: Solve for x
    x = 1,217,186,424,223,995.75/38,851,938.40
  6. Step 6: Final answer
    x = 31,328,846.75

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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.