Home / 648,986,923.98-972,800,141.40-239,782,077.90

Finding the Fourth Proportional to 648,986,923.98, 972,800,141.40 and 239,782,077.90

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Solution

The fourth proportional to 648,986,923.98, 972,800,141.40 and 239,782,077.90 is: 359,421,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,986,923.98 : 972,800,141.40 = 239,782,077.90 : x
  2. Step 2: Convert to fraction form
    648,986,923.98/972,800,141.40 = 239,782,077.90/x
  3. Step 3: Cross multiply
    648,986,923.98x = 972,800,141.40 × 239,782,077.90
  4. Step 4: Simplify right side
    648,986,923.98x = 233,260,039,286,305,824
  5. Step 5: Solve for x
    x = 233,260,039,286,305,824/648,986,923.98
  6. Step 6: Final answer
    x = 359,421,785.97

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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.