Home / 143,418,471.40-215,231,336.88-57,107,136.16

Finding the Fourth Proportional to 143,418,471.40, 215,231,336.88 and 57,107,136.16

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Solution

The fourth proportional to 143,418,471.40, 215,231,336.88 and 57,107,136.16 is: 85,701,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,418,471.40 : 215,231,336.88 = 57,107,136.16 : x
  2. Step 2: Convert to fraction form
    143,418,471.40/215,231,336.88 = 57,107,136.16/x
  3. Step 3: Cross multiply
    143,418,471.40x = 215,231,336.88 × 57,107,136.16
  4. Step 4: Simplify right side
    143,418,471.40x = 12,291,245,261,104,988
  5. Step 5: Solve for x
    x = 12,291,245,261,104,988/143,418,471.40
  6. Step 6: Final answer
    x = 85,701,968.10

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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.