Home / 542,862,010.80-814,293,016.20-389,807,002.80

Finding the Fourth Proportional to 542,862,010.80, 814,293,016.20 and 389,807,002.80

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Solution

The fourth proportional to 542,862,010.80, 814,293,016.20 and 389,807,002.80 is: 584,710,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,862,010.80 : 814,293,016.20 = 389,807,002.80 : x
  2. Step 2: Convert to fraction form
    542,862,010.80/814,293,016.20 = 389,807,002.80/x
  3. Step 3: Cross multiply
    542,862,010.80x = 814,293,016.20 × 389,807,002.80
  4. Step 4: Simplify right side
    542,862,010.80x = 317,417,120,045,893,888
  5. Step 5: Solve for x
    x = 317,417,120,045,893,888/542,862,010.80
  6. Step 6: Final answer
    x = 584,710,504.20

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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.