Home / 20,531,861.52-28,331,003.16-11,364,482.40

Finding the Fourth Proportional to 20,531,861.52, 28,331,003.16 and 11,364,482.40

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Solution

The fourth proportional to 20,531,861.52, 28,331,003.16 and 11,364,482.40 is: 15,681,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531,861.52 : 28,331,003.16 = 11,364,482.40 : x
  2. Step 2: Convert to fraction form
    20,531,861.52/28,331,003.16 = 11,364,482.40/x
  3. Step 3: Cross multiply
    20,531,861.52x = 28,331,003.16 × 11,364,482.40
  4. Step 4: Simplify right side
    20,531,861.52x = 321,967,186,786,164.38
  5. Step 5: Solve for x
    x = 321,967,186,786,164.38/20,531,861.52
  6. Step 6: Final answer
    x = 15,681,344.16

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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.