Home / 101,282,229.09-139,769,614.80-54,872,485.29

Finding the Fourth Proportional to 101,282,229.09, 139,769,614.80 and 54,872,485.29

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Solution

The fourth proportional to 101,282,229.09, 139,769,614.80 and 54,872,485.29 is: 75,724,104.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,282,229.09 : 139,769,614.80 = 54,872,485.29 : x
  2. Step 2: Convert to fraction form
    101,282,229.09/139,769,614.80 = 54,872,485.29/x
  3. Step 3: Cross multiply
    101,282,229.09x = 139,769,614.80 × 54,872,485.29
  4. Step 4: Simplify right side
    101,282,229.09x = 7,669,506,132,101,967
  5. Step 5: Solve for x
    x = 7,669,506,132,101,967/101,282,229.09
  6. Step 6: Final answer
    x = 75,724,104.82

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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.