Home / 13,315,597.68-18,375,528.75-7,515,608.07

Finding the Fourth Proportional to 13,315,597.68, 18,375,528.75 and 7,515,608.07

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Solution

The fourth proportional to 13,315,597.68, 18,375,528.75 and 7,515,608.07 is: 10,371,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,597.68 : 18,375,528.75 = 7,515,608.07 : x
  2. Step 2: Convert to fraction form
    13,315,597.68/18,375,528.75 = 7,515,608.07/x
  3. Step 3: Cross multiply
    13,315,597.68x = 18,375,528.75 × 7,515,608.07
  4. Step 4: Simplify right side
    13,315,597.68x = 138,103,272,164,017.02
  5. Step 5: Solve for x
    x = 138,103,272,164,017.02/13,315,597.68
  6. Step 6: Final answer
    x = 10,371,541.37

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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.