Home / 91,901,020.80-126,823,409.28-50,647,913.76

Finding the Fourth Proportional to 91,901,020.80, 126,823,409.28 and 50,647,913.76

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Solution

The fourth proportional to 91,901,020.80, 126,823,409.28 and 50,647,913.76 is: 69,894,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,901,020.80 : 126,823,409.28 = 50,647,913.76 : x
  2. Step 2: Convert to fraction form
    91,901,020.80/126,823,409.28 = 50,647,913.76/x
  3. Step 3: Cross multiply
    91,901,020.80x = 126,823,409.28 × 50,647,913.76
  4. Step 4: Simplify right side
    91,901,020.80x = 6,423,341,095,962,623
  5. Step 5: Solve for x
    x = 6,423,341,095,962,623/91,901,020.80
  6. Step 6: Final answer
    x = 69,894,121.31

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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.