Home / 91,151,971.79-125,789,711.35-49,336,030.14

Finding the Fourth Proportional to 91,151,971.79, 125,789,711.35 and 49,336,030.14

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Solution

The fourth proportional to 91,151,971.79, 125,789,711.35 and 49,336,030.14 is: 68,083,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,151,971.79 : 125,789,711.35 = 49,336,030.14 : x
  2. Step 2: Convert to fraction form
    91,151,971.79/125,789,711.35 = 49,336,030.14/x
  3. Step 3: Cross multiply
    91,151,971.79x = 125,789,711.35 × 49,336,030.14
  4. Step 4: Simplify right side
    91,151,971.79x = 6,205,964,990,670,274
  5. Step 5: Solve for x
    x = 6,205,964,990,670,274/91,151,971.79
  6. Step 6: Final answer
    x = 68,083,716.34

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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.