Home / 30,950,901.56-42,667,227.77-21,629,532.13

Finding the Fourth Proportional to 30,950,901.56, 42,667,227.77 and 21,629,532.13

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Solution

The fourth proportional to 30,950,901.56, 42,667,227.77 and 21,629,532.13 is: 29,817,295.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,950,901.56 : 42,667,227.77 = 21,629,532.13 : x
  2. Step 2: Convert to fraction form
    30,950,901.56/42,667,227.77 = 21,629,532.13/x
  3. Step 3: Cross multiply
    30,950,901.56x = 42,667,227.77 × 21,629,532.13
  4. Step 4: Simplify right side
    30,950,901.56x = 922,872,173,734,427.62
  5. Step 5: Solve for x
    x = 922,872,173,734,427.62/30,950,901.56
  6. Step 6: Final answer
    x = 29,817,295.37

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1.5x scale

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.