Home / 19,115,655.70-28,689,813.15-7,764,250.90

Finding the Fourth Proportional to 19,115,655.70, 28,689,813.15 and 7,764,250.90

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Solution

The fourth proportional to 19,115,655.70, 28,689,813.15 and 7,764,250.90 is: 11,653,008.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115,655.70 : 28,689,813.15 = 7,764,250.90 : x
  2. Step 2: Convert to fraction form
    19,115,655.70/28,689,813.15 = 7,764,250.90/x
  3. Step 3: Cross multiply
    19,115,655.70x = 28,689,813.15 × 7,764,250.90
  4. Step 4: Simplify right side
    19,115,655.70x = 222,754,907,570,719.34
  5. Step 5: Solve for x
    x = 222,754,907,570,719.34/19,115,655.70
  6. Step 6: Final answer
    x = 11,653,008.98

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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.