Home / 672,738,147.60-1,009,107,221.40-440,285,854.20

Finding the Fourth Proportional to 672,738,147.60, 1,009,107,221.40 and 440,285,854.20

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Solution

The fourth proportional to 672,738,147.60, 1,009,107,221.40 and 440,285,854.20 is: 660,428,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,738,147.60 : 1,009,107,221.40 = 440,285,854.20 : x
  2. Step 2: Convert to fraction form
    672,738,147.60/1,009,107,221.40 = 440,285,854.20/x
  3. Step 3: Cross multiply
    672,738,147.60x = 1,009,107,221.40 × 440,285,854.20
  4. Step 4: Simplify right side
    672,738,147.60x = 444,295,634,953,487,488
  5. Step 5: Solve for x
    x = 444,295,634,953,487,488/672,738,147.60
  6. Step 6: Final answer
    x = 660,428,781.30

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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.