Home / 18,663,166-28,005,771.48-7,879,768.84

Finding the Fourth Proportional to 18,663,166, 28,005,771.48 and 7,879,768.84

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Solution

The fourth proportional to 18,663,166, 28,005,771.48 and 7,879,768.84 is: 11,824,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663,166 : 28,005,771.48 = 7,879,768.84 : x
  2. Step 2: Convert to fraction form
    18,663,166/28,005,771.48 = 7,879,768.84/x
  3. Step 3: Cross multiply
    18,663,166x = 28,005,771.48 × 7,879,768.84
  4. Step 4: Simplify right side
    18,663,166x = 220,679,005,448,264.69
  5. Step 5: Solve for x
    x = 220,679,005,448,264.69/18,663,166
  6. Step 6: Final answer
    x = 11,824,307.06

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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.