Home / 91,608,860.93-126,378,096.31-81,165,528.90

Finding the Fourth Proportional to 91,608,860.93, 126,378,096.31 and 81,165,528.90

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Solution

The fourth proportional to 91,608,860.93, 126,378,096.31 and 81,165,528.90 is: 111,971,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,608,860.93 : 126,378,096.31 = 81,165,528.90 : x
  2. Step 2: Convert to fraction form
    91,608,860.93/126,378,096.31 = 81,165,528.90/x
  3. Step 3: Cross multiply
    91,608,860.93x = 126,378,096.31 × 81,165,528.90
  4. Step 4: Simplify right side
    91,608,860.93x = 10,257,545,028,477,746
  5. Step 5: Solve for x
    x = 10,257,545,028,477,746/91,608,860.93
  6. Step 6: Final answer
    x = 111,971,101.10

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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.