Home / 109,098,507.40-150,641,723.84-87,837,751.56

Finding the Fourth Proportional to 109,098,507.40, 150,641,723.84 and 87,837,751.56

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Solution

The fourth proportional to 109,098,507.40, 150,641,723.84 and 87,837,751.56 is: 121,285,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,098,507.40 : 150,641,723.84 = 87,837,751.56 : x
  2. Step 2: Convert to fraction form
    109,098,507.40/150,641,723.84 = 87,837,751.56/x
  3. Step 3: Cross multiply
    109,098,507.40x = 150,641,723.84 × 87,837,751.56
  4. Step 4: Simplify right side
    109,098,507.40x = 13,232,030,312,576,300
  5. Step 5: Solve for x
    x = 13,232,030,312,576,300/109,098,507.40
  6. Step 6: Final answer
    x = 121,285,163.55

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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.