Home / 91,138,358.43-125,771,334.63-49,322,428.77

Finding the Fourth Proportional to 91,138,358.43, 125,771,334.63 and 49,322,428.77

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Solution

The fourth proportional to 91,138,358.43, 125,771,334.63 and 49,322,428.77 is: 68,065,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,138,358.43 : 125,771,334.63 = 49,322,428.77 : x
  2. Step 2: Convert to fraction form
    91,138,358.43/125,771,334.63 = 49,322,428.77/x
  3. Step 3: Cross multiply
    91,138,358.43x = 125,771,334.63 × 49,322,428.77
  4. Step 4: Simplify right side
    91,138,358.43x = 6,203,347,693,596,009
  5. Step 5: Solve for x
    x = 6,203,347,693,596,009/91,138,358.43
  6. Step 6: Final answer
    x = 68,065,168.17

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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.