Home / 15,776,729.14-21,771,907.20-8,901,850.90

Finding the Fourth Proportional to 15,776,729.14, 21,771,907.20 and 8,901,850.90

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Solution

The fourth proportional to 15,776,729.14, 21,771,907.20 and 8,901,850.90 is: 12,284,566.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776,729.14 : 21,771,907.20 = 8,901,850.90 : x
  2. Step 2: Convert to fraction form
    15,776,729.14/21,771,907.20 = 8,901,850.90/x
  3. Step 3: Cross multiply
    15,776,729.14x = 21,771,907.20 × 8,901,850.90
  4. Step 4: Simplify right side
    15,776,729.14x = 193,810,271,703,036.47
  5. Step 5: Solve for x
    x = 193,810,271,703,036.47/15,776,729.14
  6. Step 6: Final answer
    x = 12,284,566.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.