Home / 12,771,950.40-19,171,922.40-7,985,044.80

Finding the Fourth Proportional to 12,771,950.40, 19,171,922.40 and 7,985,044.80

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Solution

The fourth proportional to 12,771,950.40, 19,171,922.40 and 7,985,044.80 is: 11,986,318.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,950.40 : 19,171,922.40 = 7,985,044.80 : x
  2. Step 2: Convert to fraction form
    12,771,950.40/19,171,922.40 = 7,985,044.80/x
  3. Step 3: Cross multiply
    12,771,950.40x = 19,171,922.40 × 7,985,044.80
  4. Step 4: Simplify right side
    12,771,950.40x = 153,088,659,266,123.50
  5. Step 5: Solve for x
    x = 153,088,659,266,123.50/12,771,950.40
  6. Step 6: Final answer
    x = 11,986,318.02

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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.