Home / 57,069,180-85,585,787.62-18,721,758.24

Finding the Fourth Proportional to 57,069,180, 85,585,787.62 and 18,721,758.24

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Solution

The fourth proportional to 57,069,180, 85,585,787.62 and 18,721,758.24 is: 28,076,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,069,180 : 85,585,787.62 = 18,721,758.24 : x
  2. Step 2: Convert to fraction form
    57,069,180/85,585,787.62 = 18,721,758.24/x
  3. Step 3: Cross multiply
    57,069,180x = 85,585,787.62 × 18,721,758.24
  4. Step 4: Simplify right side
    57,069,180x = 1,602,316,424,601,625
  5. Step 5: Solve for x
    x = 1,602,316,424,601,625/57,069,180
  6. Step 6: Final answer
    x = 28,076,738.17

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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.