Home / 38,687,840.46-53,389,219.50-21,283,812.18

Finding the Fourth Proportional to 38,687,840.46, 53,389,219.50 and 21,283,812.18

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Solution

The fourth proportional to 38,687,840.46, 53,389,219.50 and 21,283,812.18 is: 29,371,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,687,840.46 : 53,389,219.50 = 21,283,812.18 : x
  2. Step 2: Convert to fraction form
    38,687,840.46/53,389,219.50 = 21,283,812.18/x
  3. Step 3: Cross multiply
    38,687,840.46x = 53,389,219.50 × 21,283,812.18
  4. Step 4: Simplify right side
    38,687,840.46x = 1,136,326,120,274,793.50
  5. Step 5: Solve for x
    x = 1,136,326,120,274,793.50/38,687,840.46
  6. Step 6: Final answer
    x = 29,371,660.62

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1.5x scale

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.