Home / 66,979,240.62-100,322,381.34-47,489,389.71

Finding the Fourth Proportional to 66,979,240.62, 100,322,381.34 and 47,489,389.71

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Solution

The fourth proportional to 66,979,240.62, 100,322,381.34 and 47,489,389.71 is: 71,130,228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,979,240.62 : 100,322,381.34 = 47,489,389.71 : x
  2. Step 2: Convert to fraction form
    66,979,240.62/100,322,381.34 = 47,489,389.71/x
  3. Step 3: Cross multiply
    66,979,240.62x = 100,322,381.34 × 47,489,389.71
  4. Step 4: Simplify right side
    66,979,240.62x = 4,764,248,664,090,492
  5. Step 5: Solve for x
    x = 4,764,248,664,090,492/66,979,240.62
  6. Step 6: Final answer
    x = 71,130,228.11

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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.