Home / 31,100,409-42,927,100.56-18,051,871.77

Finding the Fourth Proportional to 31,100,409, 42,927,100.56 and 18,051,871.77

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Solution

The fourth proportional to 31,100,409, 42,927,100.56 and 18,051,871.77 is: 24,916,537.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,100,409 : 42,927,100.56 = 18,051,871.77 : x
  2. Step 2: Convert to fraction form
    31,100,409/42,927,100.56 = 18,051,871.77/x
  3. Step 3: Cross multiply
    31,100,409x = 42,927,100.56 × 18,051,871.77
  4. Step 4: Simplify right side
    31,100,409x = 774,914,514,767,015.25
  5. Step 5: Solve for x
    x = 774,914,514,767,015.25/31,100,409
  6. Step 6: Final answer
    x = 24,916,537.75

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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.