Home / 11,776,449.40-17,636,329.77-7,978,417.72

Finding the Fourth Proportional to 11,776,449.40, 17,636,329.77 and 7,978,417.72

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Solution

The fourth proportional to 11,776,449.40, 17,636,329.77 and 7,978,417.72 is: 11,948,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776,449.40 : 17,636,329.77 = 7,978,417.72 : x
  2. Step 2: Convert to fraction form
    11,776,449.40/17,636,329.77 = 7,978,417.72/x
  3. Step 3: Cross multiply
    11,776,449.40x = 17,636,329.77 × 7,978,417.72
  4. Step 4: Simplify right side
    11,776,449.40x = 140,710,005,952,731.52
  5. Step 5: Solve for x
    x = 140,710,005,952,731.52/11,776,449.40
  6. Step 6: Final answer
    x = 11,948,423.60

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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.