Home / 1,078,272,064.60-1,617,408,096.90-388,285,811.80

Finding the Fourth Proportional to 1,078,272,064.60, 1,617,408,096.90 and 388,285,811.80

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Solution

The fourth proportional to 1,078,272,064.60, 1,617,408,096.90 and 388,285,811.80 is: 582,428,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,272,064.60 : 1,617,408,096.90 = 388,285,811.80 : x
  2. Step 2: Convert to fraction form
    1,078,272,064.60/1,617,408,096.90 = 388,285,811.80/x
  3. Step 3: Cross multiply
    1,078,272,064.60x = 1,617,408,096.90 × 388,285,811.80
  4. Step 4: Simplify right side
    1,078,272,064.60x = 628,016,615,916,709,632
  5. Step 5: Solve for x
    x = 628,016,615,916,709,632/1,078,272,064.60
  6. Step 6: Final answer
    x = 582,428,717.70

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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.