Home / 271,942,479.60-407,913,209.04-85,210,717.20

Finding the Fourth Proportional to 271,942,479.60, 407,913,209.04 and 85,210,717.20

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Solution

The fourth proportional to 271,942,479.60, 407,913,209.04 and 85,210,717.20 is: 127,815,915.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,942,479.60 : 407,913,209.04 = 85,210,717.20 : x
  2. Step 2: Convert to fraction form
    271,942,479.60/407,913,209.04 = 85,210,717.20/x
  3. Step 3: Cross multiply
    271,942,479.60x = 407,913,209.04 × 85,210,717.20
  4. Step 4: Simplify right side
    271,942,479.60x = 34,758,577,097,651,928
  5. Step 5: Solve for x
    x = 34,758,577,097,651,928/271,942,479.60
  6. Step 6: Final answer
    x = 127,815,915.88

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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.