Home / 13,148,739.12-18,145,661.55-7,347,765.36

Finding the Fourth Proportional to 13,148,739.12, 18,145,661.55 and 7,347,765.36

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Solution

The fourth proportional to 13,148,739.12, 18,145,661.55 and 7,347,765.36 is: 10,140,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,739.12 : 18,145,661.55 = 7,347,765.36 : x
  2. Step 2: Convert to fraction form
    13,148,739.12/18,145,661.55 = 7,347,765.36/x
  3. Step 3: Cross multiply
    13,148,739.12x = 18,145,661.55 × 7,347,765.36
  4. Step 4: Simplify right side
    13,148,739.12x = 133,330,063,371,373.92
  5. Step 5: Solve for x
    x = 133,330,063,371,373.92/13,148,739.12
  6. Step 6: Final answer
    x = 10,140,140.60

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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.