Home / 667,307,749.20-1,000,961,623.80-621,958,117.20

Finding the Fourth Proportional to 667,307,749.20, 1,000,961,623.80 and 621,958,117.20

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Solution

The fourth proportional to 667,307,749.20, 1,000,961,623.80 and 621,958,117.20 is: 932,937,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,307,749.20 : 1,000,961,623.80 = 621,958,117.20 : x
  2. Step 2: Convert to fraction form
    667,307,749.20/1,000,961,623.80 = 621,958,117.20/x
  3. Step 3: Cross multiply
    667,307,749.20x = 1,000,961,623.80 × 621,958,117.20
  4. Step 4: Simplify right side
    667,307,749.20x = 622,556,206,928,102,784
  5. Step 5: Solve for x
    x = 622,556,206,928,102,784/667,307,749.20
  6. Step 6: Final answer
    x = 932,937,175.80

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1.5x scale

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.