Home / 57,192,979.01-78,926,871.98-31,087,480.66

Finding the Fourth Proportional to 57,192,979.01, 78,926,871.98 and 31,087,480.66

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Solution

The fourth proportional to 57,192,979.01, 78,926,871.98 and 31,087,480.66 is: 42,901,028.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,192,979.01 : 78,926,871.98 = 31,087,480.66 : x
  2. Step 2: Convert to fraction form
    57,192,979.01/78,926,871.98 = 31,087,480.66/x
  3. Step 3: Cross multiply
    57,192,979.01x = 78,926,871.98 × 31,087,480.66
  4. Step 4: Simplify right side
    57,192,979.01x = 2,453,637,606,112,947.50
  5. Step 5: Solve for x
    x = 2,453,637,606,112,947.50/57,192,979.01
  6. Step 6: Final answer
    x = 42,901,028.22

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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.