Home / 12,241,831.40-18,347,000.70-7,444,428.20

Finding the Fourth Proportional to 12,241,831.40, 18,347,000.70 and 7,444,428.20

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Solution

The fourth proportional to 12,241,831.40, 18,347,000.70 and 7,444,428.20 is: 11,157,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241,831.40 : 18,347,000.70 = 7,444,428.20 : x
  2. Step 2: Convert to fraction form
    12,241,831.40/18,347,000.70 = 7,444,428.20/x
  3. Step 3: Cross multiply
    12,241,831.40x = 18,347,000.70 × 7,444,428.20
  4. Step 4: Simplify right side
    12,241,831.40x = 136,582,929,396,499.73
  5. Step 5: Solve for x
    x = 136,582,929,396,499.73/12,241,831.40
  6. Step 6: Final answer
    x = 11,157,066.69

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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.