Home / 39,943,470.80-55,121,867.88-21,608,751.44

Finding the Fourth Proportional to 39,943,470.80, 55,121,867.88 and 21,608,751.44

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Solution

The fourth proportional to 39,943,470.80, 55,121,867.88 and 21,608,751.44 is: 29,820,011.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943,470.80 : 55,121,867.88 = 21,608,751.44 : x
  2. Step 2: Convert to fraction form
    39,943,470.80/55,121,867.88 = 21,608,751.44/x
  3. Step 3: Cross multiply
    39,943,470.80x = 55,121,867.88 × 21,608,751.44
  4. Step 4: Simplify right side
    39,943,470.80x = 1,191,114,741,927,440
  5. Step 5: Solve for x
    x = 1,191,114,741,927,440/39,943,470.80
  6. Step 6: Final answer
    x = 29,820,011.08

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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.