Home / 7,419,210.40-11,128,815.60-6,687,002.80

Finding the Fourth Proportional to 7,419,210.40, 11,128,815.60 and 6,687,002.80

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Solution

The fourth proportional to 7,419,210.40, 11,128,815.60 and 6,687,002.80 is: 10,030,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419,210.40 : 11,128,815.60 = 6,687,002.80 : x
  2. Step 2: Convert to fraction form
    7,419,210.40/11,128,815.60 = 6,687,002.80/x
  3. Step 3: Cross multiply
    7,419,210.40x = 11,128,815.60 × 6,687,002.80
  4. Step 4: Simplify right side
    7,419,210.40x = 74,418,421,077,883.67
  5. Step 5: Solve for x
    x = 74,418,421,077,883.67/7,419,210.40
  6. Step 6: Final answer
    x = 10,030,504.20

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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.