Home / 21,525,563.65-29,733,633.15-15,955,102.72

Finding the Fourth Proportional to 21,525,563.65, 29,733,633.15 and 15,955,102.72

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Solution

The fourth proportional to 21,525,563.65, 29,733,633.15 and 15,955,102.72 is: 22,039,059.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525,563.65 : 29,733,633.15 = 15,955,102.72 : x
  2. Step 2: Convert to fraction form
    21,525,563.65/29,733,633.15 = 15,955,102.72/x
  3. Step 3: Cross multiply
    21,525,563.65x = 29,733,633.15 × 15,955,102.72
  4. Step 4: Simplify right side
    21,525,563.65x = 474,403,171,147,047.19
  5. Step 5: Solve for x
    x = 474,403,171,147,047.19/21,525,563.65
  6. Step 6: Final answer
    x = 22,039,059.18

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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.