Home / 21,039,633.90-31,559,450.85-9,072,369.90

Finding the Fourth Proportional to 21,039,633.90, 31,559,450.85 and 9,072,369.90

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Solution

The fourth proportional to 21,039,633.90, 31,559,450.85 and 9,072,369.90 is: 13,608,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039,633.90 : 31,559,450.85 = 9,072,369.90 : x
  2. Step 2: Convert to fraction form
    21,039,633.90/31,559,450.85 = 9,072,369.90/x
  3. Step 3: Cross multiply
    21,039,633.90x = 31,559,450.85 × 9,072,369.90
  4. Step 4: Simplify right side
    21,039,633.90x = 286,319,011,952,069.44
  5. Step 5: Solve for x
    x = 286,319,011,952,069.44/21,039,633.90
  6. Step 6: Final answer
    x = 13,608,554.85

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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.