Home / 7,777,380.40-11,666,070.60-7,279,716.40

Finding the Fourth Proportional to 7,777,380.40, 11,666,070.60 and 7,279,716.40

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Solution

The fourth proportional to 7,777,380.40, 11,666,070.60 and 7,279,716.40 is: 10,919,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,380.40 : 11,666,070.60 = 7,279,716.40 : x
  2. Step 2: Convert to fraction form
    7,777,380.40/11,666,070.60 = 7,279,716.40/x
  3. Step 3: Cross multiply
    7,777,380.40x = 11,666,070.60 × 7,279,716.40
  4. Step 4: Simplify right side
    7,777,380.40x = 84,925,685,470,377.84
  5. Step 5: Solve for x
    x = 84,925,685,470,377.84/7,777,380.40
  6. Step 6: Final answer
    x = 10,919,574.60

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1.5x scale

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.