Home / 280,839,063.60-420,975,160.20-127,595,098.80

Finding the Fourth Proportional to 280,839,063.60, 420,975,160.20 and 127,595,098.80

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Solution

The fourth proportional to 280,839,063.60, 420,975,160.20 and 127,595,098.80 is: 191,263,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,839,063.60 : 420,975,160.20 = 127,595,098.80 : x
  2. Step 2: Convert to fraction form
    280,839,063.60/420,975,160.20 = 127,595,098.80/x
  3. Step 3: Cross multiply
    280,839,063.60x = 420,975,160.20 × 127,595,098.80
  4. Step 4: Simplify right side
    280,839,063.60x = 53,714,367,158,064,824
  5. Step 5: Solve for x
    x = 53,714,367,158,064,824/280,839,063.60
  6. Step 6: Final answer
    x = 191,263,873.58

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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.