Home / 31,455,361.49-43,386,038.19-20,996,104.37

Finding the Fourth Proportional to 31,455,361.49, 43,386,038.19 and 20,996,104.37

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Solution

The fourth proportional to 31,455,361.49, 43,386,038.19 and 20,996,104.37 is: 28,959,698.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,361.49 : 43,386,038.19 = 20,996,104.37 : x
  2. Step 2: Convert to fraction form
    31,455,361.49/43,386,038.19 = 20,996,104.37/x
  3. Step 3: Cross multiply
    31,455,361.49x = 43,386,038.19 × 20,996,104.37
  4. Step 4: Simplify right side
    31,455,361.49x = 910,937,785,821,115.62
  5. Step 5: Solve for x
    x = 910,937,785,821,115.62/31,455,361.49
  6. Step 6: Final answer
    x = 28,959,698.53

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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.