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Finding the Fourth Proportional to 657,932,986.20, 986,899,479.30 and 270,034,200.30

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Solution

The fourth proportional to 657,932,986.20, 986,899,479.30 and 270,034,200.30 is: 405,051,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,932,986.20 : 986,899,479.30 = 270,034,200.30 : x
  2. Step 2: Convert to fraction form
    657,932,986.20/986,899,479.30 = 270,034,200.30/x
  3. Step 3: Cross multiply
    657,932,986.20x = 986,899,479.30 × 270,034,200.30
  4. Step 4: Simplify right side
    657,932,986.20x = 266,496,611,669,261,888
  5. Step 5: Solve for x
    x = 266,496,611,669,261,888/657,932,986.20
  6. Step 6: Final answer
    x = 405,051,300.45

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Similar ratio
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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.