Home / 542,045,229.40-813,085,386.80-258,042,716.20

Finding the Fourth Proportional to 542,045,229.40, 813,085,386.80 and 258,042,716.20

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Solution

The fourth proportional to 542,045,229.40, 813,085,386.80 and 258,042,716.20 is: 387,072,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,045,229.40 : 813,085,386.80 = 258,042,716.20 : x
  2. Step 2: Convert to fraction form
    542,045,229.40/813,085,386.80 = 258,042,716.20/x
  3. Step 3: Cross multiply
    542,045,229.40x = 813,085,386.80 × 258,042,716.20
  4. Step 4: Simplify right side
    542,045,229.40x = 209,810,761,712,399,616
  5. Step 5: Solve for x
    x = 209,810,761,712,399,616/542,045,229.40
  6. Step 6: Final answer
    x = 387,072,425.57

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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.