Home / 726,492,043.20-1,089,738,064.80-508,388,656.80

Finding the Fourth Proportional to 726,492,043.20, 1,089,738,064.80 and 508,388,656.80

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Solution

The fourth proportional to 726,492,043.20, 1,089,738,064.80 and 508,388,656.80 is: 762,582,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,492,043.20 : 1,089,738,064.80 = 508,388,656.80 : x
  2. Step 2: Convert to fraction form
    726,492,043.20/1,089,738,064.80 = 508,388,656.80/x
  3. Step 3: Cross multiply
    726,492,043.20x = 1,089,738,064.80 × 508,388,656.80
  4. Step 4: Simplify right side
    726,492,043.20x = 554,010,471,027,503,360
  5. Step 5: Solve for x
    x = 554,010,471,027,503,360/726,492,043.20
  6. Step 6: Final answer
    x = 762,582,985.20

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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.