Home / 12,776,420.70-19,157,632.65-5,194,820.70

Finding the Fourth Proportional to 12,776,420.70, 19,157,632.65 and 5,194,820.70

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Solution

The fourth proportional to 12,776,420.70, 19,157,632.65 and 5,194,820.70 is: 7,789,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,420.70 : 19,157,632.65 = 5,194,820.70 : x
  2. Step 2: Convert to fraction form
    12,776,420.70/19,157,632.65 = 5,194,820.70/x
  3. Step 3: Cross multiply
    12,776,420.70x = 19,157,632.65 × 5,194,820.70
  4. Step 4: Simplify right side
    12,776,420.70x = 99,520,466,653,215.84
  5. Step 5: Solve for x
    x = 99,520,466,653,215.84/12,776,420.70
  6. Step 6: Final answer
    x = 7,789,385.54

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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.