Home / 12,876,787.04-17,769,961.08-7,075,942.88

Finding the Fourth Proportional to 12,876,787.04, 17,769,961.08 and 7,075,942.88

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Solution

The fourth proportional to 12,876,787.04, 17,769,961.08 and 7,075,942.88 is: 9,764,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876,787.04 : 17,769,961.08 = 7,075,942.88 : x
  2. Step 2: Convert to fraction form
    12,876,787.04/17,769,961.08 = 7,075,942.88/x
  3. Step 3: Cross multiply
    12,876,787.04x = 17,769,961.08 × 7,075,942.88
  4. Step 4: Simplify right side
    12,876,787.04x = 125,739,229,493,053.30
  5. Step 5: Solve for x
    x = 125,739,229,493,053.30/12,876,787.04
  6. Step 6: Final answer
    x = 9,764,798.40

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1.5x scale

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.