Home / 805,903,923.20-1,208,557,286.40-260,663,244.80

Finding the Fourth Proportional to 805,903,923.20, 1,208,557,286.40 and 260,663,244.80

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Solution

The fourth proportional to 805,903,923.20, 1,208,557,286.40 and 260,663,244.80 is: 390,898,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,903,923.20 : 1,208,557,286.40 = 260,663,244.80 : x
  2. Step 2: Convert to fraction form
    805,903,923.20/1,208,557,286.40 = 260,663,244.80/x
  3. Step 3: Cross multiply
    805,903,923.20x = 1,208,557,286.40 × 260,663,244.80
  4. Step 4: Simplify right side
    805,903,923.20x = 315,026,463,799,706,944
  5. Step 5: Solve for x
    x = 315,026,463,799,706,944/805,903,923.20
  6. Step 6: Final answer
    x = 390,898,287.91

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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.