Home / 539,905,120.20-809,857,680.30-356,239,110.60

Finding the Fourth Proportional to 539,905,120.20, 809,857,680.30 and 356,239,110.60

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Solution

The fourth proportional to 539,905,120.20, 809,857,680.30 and 356,239,110.60 is: 534,358,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,905,120.20 : 809,857,680.30 = 356,239,110.60 : x
  2. Step 2: Convert to fraction form
    539,905,120.20/809,857,680.30 = 356,239,110.60/x
  3. Step 3: Cross multiply
    539,905,120.20x = 809,857,680.30 × 356,239,110.60
  4. Step 4: Simplify right side
    539,905,120.20x = 288,502,979,742,651,136
  5. Step 5: Solve for x
    x = 288,502,979,742,651,136/539,905,120.20
  6. Step 6: Final answer
    x = 534,358,665.90

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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.