Home / 13,515,319.92-18,651,145.56-7,403,967.60

Finding the Fourth Proportional to 13,515,319.92, 18,651,145.56 and 7,403,967.60

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Solution

The fourth proportional to 13,515,319.92, 18,651,145.56 and 7,403,967.60 is: 10,217,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515,319.92 : 18,651,145.56 = 7,403,967.60 : x
  2. Step 2: Convert to fraction form
    13,515,319.92/18,651,145.56 = 7,403,967.60/x
  3. Step 3: Cross multiply
    13,515,319.92x = 18,651,145.56 × 7,403,967.60
  4. Step 4: Simplify right side
    13,515,319.92x = 138,092,477,429,123.84
  5. Step 5: Solve for x
    x = 138,092,477,429,123.84/13,515,319.92
  6. Step 6: Final answer
    x = 10,217,477.52

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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.