Home / 149,590,667.13-206,490,207.10-90,054,730.48

Finding the Fourth Proportional to 149,590,667.13, 206,490,207.10 and 90,054,730.48

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Solution

The fourth proportional to 149,590,667.13, 206,490,207.10 and 90,054,730.48 is: 124,308,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,590,667.13 : 206,490,207.10 = 90,054,730.48 : x
  2. Step 2: Convert to fraction form
    149,590,667.13/206,490,207.10 = 90,054,730.48/x
  3. Step 3: Cross multiply
    149,590,667.13x = 206,490,207.10 × 90,054,730.48
  4. Step 4: Simplify right side
    149,590,667.13x = 18,595,419,946,339,000
  5. Step 5: Solve for x
    x = 18,595,419,946,339,000/149,590,667.13
  6. Step 6: Final answer
    x = 124,308,690.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.