Home / 7,777,421.40-11,666,132.10-6,713,664.60

Finding the Fourth Proportional to 7,777,421.40, 11,666,132.10 and 6,713,664.60

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Solution

The fourth proportional to 7,777,421.40, 11,666,132.10 and 6,713,664.60 is: 10,070,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,421.40 : 11,666,132.10 = 6,713,664.60 : x
  2. Step 2: Convert to fraction form
    7,777,421.40/11,666,132.10 = 6,713,664.60/x
  3. Step 3: Cross multiply
    7,777,421.40x = 11,666,132.10 × 6,713,664.60
  4. Step 4: Simplify right side
    7,777,421.40x = 78,322,498,098,693.66
  5. Step 5: Solve for x
    x = 78,322,498,098,693.66/7,777,421.40
  6. Step 6: Final answer
    x = 10,070,496.90

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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.