Home / 120,292,410.15-165,975,074.07-68,081,445.79

Finding the Fourth Proportional to 120,292,410.15, 165,975,074.07 and 68,081,445.79

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Solution

The fourth proportional to 120,292,410.15, 165,975,074.07 and 68,081,445.79 is: 93,936,292.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292,410.15 : 165,975,074.07 = 68,081,445.79 : x
  2. Step 2: Convert to fraction form
    120,292,410.15/165,975,074.07 = 68,081,445.79/x
  3. Step 3: Cross multiply
    120,292,410.15x = 165,975,074.07 × 68,081,445.79
  4. Step 4: Simplify right side
    120,292,410.15x = 11,299,823,007,447,534
  5. Step 5: Solve for x
    x = 11,299,823,007,447,534/120,292,410.15
  6. Step 6: Final answer
    x = 93,936,292.35

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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.