Home / 12,225,836.40-18,338,754.60-7,442,867.40

Finding the Fourth Proportional to 12,225,836.40, 18,338,754.60 and 7,442,867.40

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Solution

The fourth proportional to 12,225,836.40, 18,338,754.60 and 7,442,867.40 is: 11,164,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225,836.40 : 18,338,754.60 = 7,442,867.40 : x
  2. Step 2: Convert to fraction form
    12,225,836.40/18,338,754.60 = 7,442,867.40/x
  3. Step 3: Cross multiply
    12,225,836.40x = 18,338,754.60 × 7,442,867.40
  4. Step 4: Simplify right side
    12,225,836.40x = 136,492,918,768,940.06
  5. Step 5: Solve for x
    x = 136,492,918,768,940.06/12,225,836.40
  6. Step 6: Final answer
    x = 11,164,301.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.