Home / 542,045,154.06-813,085,273.56-258,042,640.79

Finding the Fourth Proportional to 542,045,154.06, 813,085,273.56 and 258,042,640.79

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Solution

The fourth proportional to 542,045,154.06, 813,085,273.56 and 258,042,640.79 is: 387,072,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,045,154.06 : 813,085,273.56 = 258,042,640.79 : x
  2. Step 2: Convert to fraction form
    542,045,154.06/813,085,273.56 = 258,042,640.79/x
  3. Step 3: Cross multiply
    542,045,154.06x = 813,085,273.56 × 258,042,640.79
  4. Step 4: Simplify right side
    542,045,154.06x = 209,810,671,176,497,920
  5. Step 5: Solve for x
    x = 209,810,671,176,497,920/542,045,154.06
  6. Step 6: Final answer
    x = 387,072,312.35

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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.