Home / 13,127,896.87-19,681,646.80-8,507,121.87

Finding the Fourth Proportional to 13,127,896.87, 19,681,646.80 and 8,507,121.87

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Solution

The fourth proportional to 13,127,896.87, 19,681,646.80 and 8,507,121.87 is: 12,754,073.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127,896.87 : 19,681,646.80 = 8,507,121.87 : x
  2. Step 2: Convert to fraction form
    13,127,896.87/19,681,646.80 = 8,507,121.87/x
  3. Step 3: Cross multiply
    13,127,896.87x = 19,681,646.80 × 8,507,121.87
  4. Step 4: Simplify right side
    13,127,896.87x = 167,434,167,929,895.50
  5. Step 5: Solve for x
    x = 167,434,167,929,895.50/13,127,896.87
  6. Step 6: Final answer
    x = 12,754,073.98

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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.