Home / 9,353,490.66-12,908,906.12-7,780,844.36

Finding the Fourth Proportional to 9,353,490.66, 12,908,906.12 and 7,780,844.36

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Solution

The fourth proportional to 9,353,490.66, 12,908,906.12 and 7,780,844.36 is: 10,738,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353,490.66 : 12,908,906.12 = 7,780,844.36 : x
  2. Step 2: Convert to fraction form
    9,353,490.66/12,908,906.12 = 7,780,844.36/x
  3. Step 3: Cross multiply
    9,353,490.66x = 12,908,906.12 × 7,780,844.36
  4. Step 4: Simplify right side
    9,353,490.66x = 100,442,189,367,623.12
  5. Step 5: Solve for x
    x = 100,442,189,367,623.12/9,353,490.66
  6. Step 6: Final answer
    x = 10,738,471.13

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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.