Home / 8,128,030.40-12,192,045.60-7,344,209.60

Finding the Fourth Proportional to 8,128,030.40, 12,192,045.60 and 7,344,209.60

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Solution

The fourth proportional to 8,128,030.40, 12,192,045.60 and 7,344,209.60 is: 11,016,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128,030.40 : 12,192,045.60 = 7,344,209.60 : x
  2. Step 2: Convert to fraction form
    8,128,030.40/12,192,045.60 = 7,344,209.60/x
  3. Step 3: Cross multiply
    8,128,030.40x = 12,192,045.60 × 7,344,209.60
  4. Step 4: Simplify right side
    8,128,030.40x = 89,540,938,339,157.75
  5. Step 5: Solve for x
    x = 89,540,938,339,157.75/8,128,030.40
  6. Step 6: Final answer
    x = 11,016,314.40

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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.