Home / 2,153,961.43-2,972,973.30-1,338,780.75

Finding the Fourth Proportional to 2,153,961.43, 2,972,973.30 and 1,338,780.75

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Solution

The fourth proportional to 2,153,961.43, 2,972,973.30 and 1,338,780.75 is: 1,847,832.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,961.43 : 2,972,973.30 = 1,338,780.75 : x
  2. Step 2: Convert to fraction form
    2,153,961.43/2,972,973.30 = 1,338,780.75/x
  3. Step 3: Cross multiply
    2,153,961.43x = 2,972,973.30 × 1,338,780.75
  4. Step 4: Simplify right side
    2,153,961.43x = 3,980,159,417,610.07
  5. Step 5: Solve for x
    x = 3,980,159,417,610.07/2,153,961.43
  6. Step 6: Final answer
    x = 1,847,832.26

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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.