Home / 91,397,653.45-126,128,761.75-52,240,270.95

Finding the Fourth Proportional to 91,397,653.45, 126,128,761.75 and 52,240,270.95

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Solution

The fourth proportional to 91,397,653.45, 126,128,761.75 and 52,240,270.95 is: 72,091,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,397,653.45 : 126,128,761.75 = 52,240,270.95 : x
  2. Step 2: Convert to fraction form
    91,397,653.45/126,128,761.75 = 52,240,270.95/x
  3. Step 3: Cross multiply
    91,397,653.45x = 126,128,761.75 × 52,240,270.95
  4. Step 4: Simplify right side
    91,397,653.45x = 6,589,000,688,407,997
  5. Step 5: Solve for x
    x = 6,589,000,688,407,997/91,397,653.45
  6. Step 6: Final answer
    x = 72,091,573.90

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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.