Home / 549,072,787.88-823,608,520.82-140,128,982.12

Finding the Fourth Proportional to 549,072,787.88, 823,608,520.82 and 140,128,982.12

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Solution

The fourth proportional to 549,072,787.88, 823,608,520.82 and 140,128,982.12 is: 210,193,304.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,072,787.88 : 823,608,520.82 = 140,128,982.12 : x
  2. Step 2: Convert to fraction form
    549,072,787.88/823,608,520.82 = 140,128,982.12/x
  3. Step 3: Cross multiply
    549,072,787.88x = 823,608,520.82 × 140,128,982.12
  4. Step 4: Simplify right side
    549,072,787.88x = 115,411,423,687,865,440
  5. Step 5: Solve for x
    x = 115,411,423,687,865,440/549,072,787.88
  6. Step 6: Final answer
    x = 210,193,304.49

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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.