Home / 43,178,891.80-64,775,595.30-12,889,816.60

Finding the Fourth Proportional to 43,178,891.80, 64,775,595.30 and 12,889,816.60

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Solution

The fourth proportional to 43,178,891.80, 64,775,595.30 and 12,889,816.60 is: 19,336,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,178,891.80 : 64,775,595.30 = 12,889,816.60 : x
  2. Step 2: Convert to fraction form
    43,178,891.80/64,775,595.30 = 12,889,816.60/x
  3. Step 3: Cross multiply
    43,178,891.80x = 64,775,595.30 × 12,889,816.60
  4. Step 4: Simplify right side
    43,178,891.80x = 834,945,543,572,821.88
  5. Step 5: Solve for x
    x = 834,945,543,572,821.88/43,178,891.80
  6. Step 6: Final answer
    x = 19,336,891.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.