Home / 78,907,791.65-108,888,053.80-43,623,482.70

Finding the Fourth Proportional to 78,907,791.65, 108,888,053.80 and 43,623,482.70

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Solution

The fourth proportional to 78,907,791.65, 108,888,053.80 and 43,623,482.70 is: 60,197,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,907,791.65 : 108,888,053.80 = 43,623,482.70 : x
  2. Step 2: Convert to fraction form
    78,907,791.65/108,888,053.80 = 43,623,482.70/x
  3. Step 3: Cross multiply
    78,907,791.65x = 108,888,053.80 × 43,623,482.70
  4. Step 4: Simplify right side
    78,907,791.65x = 4,750,076,131,180,969
  5. Step 5: Solve for x
    x = 4,750,076,131,180,969/78,907,791.65
  6. Step 6: Final answer
    x = 60,197,808.50

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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.