Home / 91,247,293.68-125,879,055.80-80,803,952.88

Finding the Fourth Proportional to 91,247,293.68, 125,879,055.80 and 80,803,952.88

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Solution

The fourth proportional to 91,247,293.68, 125,879,055.80 and 80,803,952.88 is: 111,472,076.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,247,293.68 : 125,879,055.80 = 80,803,952.88 : x
  2. Step 2: Convert to fraction form
    91,247,293.68/125,879,055.80 = 80,803,952.88/x
  3. Step 3: Cross multiply
    91,247,293.68x = 125,879,055.80 × 80,803,952.88
  4. Step 4: Simplify right side
    91,247,293.68x = 10,171,525,293,442,090
  5. Step 5: Solve for x
    x = 10,171,525,293,442,090/91,247,293.68
  6. Step 6: Final answer
    x = 111,472,076.41

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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.