Home / 258,991,486.11-387,791,083.85-197,286,702.39

Finding the Fourth Proportional to 258,991,486.11, 387,791,083.85 and 197,286,702.39

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Solution

The fourth proportional to 258,991,486.11, 387,791,083.85 and 197,286,702.39 is: 295,399,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,991,486.11 : 387,791,083.85 = 197,286,702.39 : x
  2. Step 2: Convert to fraction form
    258,991,486.11/387,791,083.85 = 197,286,702.39/x
  3. Step 3: Cross multiply
    258,991,486.11x = 387,791,083.85 × 197,286,702.39
  4. Step 4: Simplify right side
    258,991,486.11x = 76,506,024,148,024,048
  5. Step 5: Solve for x
    x = 76,506,024,148,024,048/258,991,486.11
  6. Step 6: Final answer
    x = 295,399,765.05

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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.