Home / 12,771,617.40-19,151,521.20-5,579,449.20

Finding the Fourth Proportional to 12,771,617.40, 19,151,521.20 and 5,579,449.20

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Solution

The fourth proportional to 12,771,617.40, 19,151,521.20 and 5,579,449.20 is: 8,366,594.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,617.40 : 19,151,521.20 = 5,579,449.20 : x
  2. Step 2: Convert to fraction form
    12,771,617.40/19,151,521.20 = 5,579,449.20/x
  3. Step 3: Cross multiply
    12,771,617.40x = 19,151,521.20 × 5,579,449.20
  4. Step 4: Simplify right side
    12,771,617.40x = 106,854,939,638,123.05
  5. Step 5: Solve for x
    x = 106,854,939,638,123.05/12,771,617.40
  6. Step 6: Final answer
    x = 8,366,594.17

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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.