Home / 6,920,815.66-9,550,998.78-3,980,628.05

Finding the Fourth Proportional to 6,920,815.66, 9,550,998.78 and 3,980,628.05

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Solution

The fourth proportional to 6,920,815.66, 9,550,998.78 and 3,980,628.05 is: 5,493,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920,815.66 : 9,550,998.78 = 3,980,628.05 : x
  2. Step 2: Convert to fraction form
    6,920,815.66/9,550,998.78 = 3,980,628.05/x
  3. Step 3: Cross multiply
    6,920,815.66x = 9,550,998.78 × 3,980,628.05
  4. Step 4: Simplify right side
    6,920,815.66x = 38,018,973,608,892.46
  5. Step 5: Solve for x
    x = 38,018,973,608,892.46/6,920,815.66
  6. Step 6: Final answer
    x = 5,493,423.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.