Home / 12,776,540.70-19,157,812.65-5,194,940.70

Finding the Fourth Proportional to 12,776,540.70, 19,157,812.65 and 5,194,940.70

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Solution

The fourth proportional to 12,776,540.70, 19,157,812.65 and 5,194,940.70 is: 7,789,565.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,540.70 : 19,157,812.65 = 5,194,940.70 : x
  2. Step 2: Convert to fraction form
    12,776,540.70/19,157,812.65 = 5,194,940.70/x
  3. Step 3: Cross multiply
    12,776,540.70x = 19,157,812.65 × 5,194,940.70
  4. Step 4: Simplify right side
    12,776,540.70x = 99,523,700,658,459.84
  5. Step 5: Solve for x
    x = 99,523,700,658,459.84/12,776,540.70
  6. Step 6: Final answer
    x = 7,789,565.50

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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.