Home / 793,156,811.20-1,189,735,216.80-640,101,803.20

Finding the Fourth Proportional to 793,156,811.20, 1,189,735,216.80 and 640,101,803.20

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Solution

The fourth proportional to 793,156,811.20, 1,189,735,216.80 and 640,101,803.20 is: 960,152,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,156,811.20 : 1,189,735,216.80 = 640,101,803.20 : x
  2. Step 2: Convert to fraction form
    793,156,811.20/1,189,735,216.80 = 640,101,803.20/x
  3. Step 3: Cross multiply
    793,156,811.20x = 1,189,735,216.80 × 640,101,803.20
  4. Step 4: Simplify right side
    793,156,811.20x = 761,551,657,604,222,976
  5. Step 5: Solve for x
    x = 761,551,657,604,222,976/793,156,811.20
  6. Step 6: Final answer
    x = 960,152,704.80

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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.