Home / 979,776,003.70-1,469,664,005.55-397,789,059.70

Finding the Fourth Proportional to 979,776,003.70, 1,469,664,005.55 and 397,789,059.70

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Solution

The fourth proportional to 979,776,003.70, 1,469,664,005.55 and 397,789,059.70 is: 596,683,589.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,776,003.70 : 1,469,664,005.55 = 397,789,059.70 : x
  2. Step 2: Convert to fraction form
    979,776,003.70/1,469,664,005.55 = 397,789,059.70/x
  3. Step 3: Cross multiply
    979,776,003.70x = 1,469,664,005.55 × 397,789,059.70
  4. Step 4: Simplify right side
    979,776,003.70x = 584,616,262,842,670,080
  5. Step 5: Solve for x
    x = 584,616,262,842,670,080/979,776,003.70
  6. Step 6: Final answer
    x = 596,683,589.55

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Double scale
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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.