Home / 672,738,155.60-1,009,107,233.40-440,285,862.20

Finding the Fourth Proportional to 672,738,155.60, 1,009,107,233.40 and 440,285,862.20

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Solution

The fourth proportional to 672,738,155.60, 1,009,107,233.40 and 440,285,862.20 is: 660,428,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,738,155.60 : 1,009,107,233.40 = 440,285,862.20 : x
  2. Step 2: Convert to fraction form
    672,738,155.60/1,009,107,233.40 = 440,285,862.20/x
  3. Step 3: Cross multiply
    672,738,155.60x = 1,009,107,233.40 × 440,285,862.20
  4. Step 4: Simplify right side
    672,738,155.60x = 444,295,648,309,775,616
  5. Step 5: Solve for x
    x = 444,295,648,309,775,616/672,738,155.60
  6. Step 6: Final answer
    x = 660,428,793.30

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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.