Home / 11,312,641.60-15,611,796.78-6,418,069.88

Finding the Fourth Proportional to 11,312,641.60, 15,611,796.78 and 6,418,069.88

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Solution

The fourth proportional to 11,312,641.60, 15,611,796.78 and 6,418,069.88 is: 8,857,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312,641.60 : 15,611,796.78 = 6,418,069.88 : x
  2. Step 2: Convert to fraction form
    11,312,641.60/15,611,796.78 = 6,418,069.88/x
  3. Step 3: Cross multiply
    11,312,641.60x = 15,611,796.78 × 6,418,069.88
  4. Step 4: Simplify right side
    11,312,641.60x = 100,197,602,686,398.98
  5. Step 5: Solve for x
    x = 100,197,602,686,398.98/11,312,641.60
  6. Step 6: Final answer
    x = 8,857,135.78

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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.