Home / 280,839,010.60-420,975,080.70-127,595,045.80

Finding the Fourth Proportional to 280,839,010.60, 420,975,080.70 and 127,595,045.80

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Solution

The fourth proportional to 280,839,010.60, 420,975,080.70 and 127,595,045.80 is: 191,263,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,839,010.60 : 420,975,080.70 = 127,595,045.80 : x
  2. Step 2: Convert to fraction form
    280,839,010.60/420,975,080.70 = 127,595,045.80/x
  3. Step 3: Cross multiply
    280,839,010.60x = 420,975,080.70 × 127,595,045.80
  4. Step 4: Simplify right side
    280,839,010.60x = 53,714,334,702,575,192
  5. Step 5: Solve for x
    x = 53,714,334,702,575,192/280,839,010.60
  6. Step 6: Final answer
    x = 191,263,794.11

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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.