Home / 672,738,101.10-1,009,107,151.65-440,285,807.70

Finding the Fourth Proportional to 672,738,101.10, 1,009,107,151.65 and 440,285,807.70

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Solution

The fourth proportional to 672,738,101.10, 1,009,107,151.65 and 440,285,807.70 is: 660,428,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,738,101.10 : 1,009,107,151.65 = 440,285,807.70 : x
  2. Step 2: Convert to fraction form
    672,738,101.10/1,009,107,151.65 = 440,285,807.70/x
  3. Step 3: Cross multiply
    672,738,101.10x = 1,009,107,151.65 × 440,285,807.70
  4. Step 4: Simplify right side
    672,738,101.10x = 444,295,557,320,066,624
  5. Step 5: Solve for x
    x = 444,295,557,320,066,624/672,738,101.10
  6. Step 6: Final answer
    x = 660,428,711.55

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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.