Home / 28,135,522.50-38,827,021.08-15,912,117.06

Finding the Fourth Proportional to 28,135,522.50, 38,827,021.08 and 15,912,117.06

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Solution

The fourth proportional to 28,135,522.50, 38,827,021.08 and 15,912,117.06 is: 21,958,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135,522.50 : 38,827,021.08 = 15,912,117.06 : x
  2. Step 2: Convert to fraction form
    28,135,522.50/38,827,021.08 = 15,912,117.06/x
  3. Step 3: Cross multiply
    28,135,522.50x = 38,827,021.08 × 15,912,117.06
  4. Step 4: Simplify right side
    28,135,522.50x = 617,820,104,516,047.62
  5. Step 5: Solve for x
    x = 617,820,104,516,047.62/28,135,522.50
  6. Step 6: Final answer
    x = 21,958,721.56

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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.