Home / 13,307,556.80-18,364,538.46-7,347,155.60

Finding the Fourth Proportional to 13,307,556.80, 18,364,538.46 and 7,347,155.60

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Solution

The fourth proportional to 13,307,556.80, 18,364,538.46 and 7,347,155.60 is: 10,139,135.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307,556.80 : 18,364,538.46 = 7,347,155.60 : x
  2. Step 2: Convert to fraction form
    13,307,556.80/18,364,538.46 = 7,347,155.60/x
  3. Step 3: Cross multiply
    13,307,556.80x = 18,364,538.46 × 7,347,155.60
  4. Step 4: Simplify right side
    13,307,556.80x = 134,927,121,587,804.38
  5. Step 5: Solve for x
    x = 134,927,121,587,804.38/13,307,556.80
  6. Step 6: Final answer
    x = 10,139,135.50

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1.5x scale

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.