Home / 394,486,947.10-591,730,420.65-164,620,999.90

Finding the Fourth Proportional to 394,486,947.10, 591,730,420.65 and 164,620,999.90

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Solution

The fourth proportional to 394,486,947.10, 591,730,420.65 and 164,620,999.90 is: 246,931,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,486,947.10 : 591,730,420.65 = 164,620,999.90 : x
  2. Step 2: Convert to fraction form
    394,486,947.10/591,730,420.65 = 164,620,999.90/x
  3. Step 3: Cross multiply
    394,486,947.10x = 591,730,420.65 × 164,620,999.90
  4. Step 4: Simplify right side
    394,486,947.10x = 97,411,253,518,650,608
  5. Step 5: Solve for x
    x = 97,411,253,518,650,608/394,486,947.10
  6. Step 6: Final answer
    x = 246,931,499.85

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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.