Home / 13,325,296.50-18,388,915.36-7,213,725

Finding the Fourth Proportional to 13,325,296.50, 18,388,915.36 and 7,213,725

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Solution

The fourth proportional to 13,325,296.50, 18,388,915.36 and 7,213,725 is: 9,954,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325,296.50 : 18,388,915.36 = 7,213,725 : x
  2. Step 2: Convert to fraction form
    13,325,296.50/18,388,915.36 = 7,213,725/x
  3. Step 3: Cross multiply
    13,325,296.50x = 18,388,915.36 × 7,213,725
  4. Step 4: Simplify right side
    13,325,296.50x = 132,652,578,455,316
  5. Step 5: Solve for x
    x = 132,652,578,455,316/13,325,296.50
  6. Step 6: Final answer
    x = 9,954,943.85

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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.