Home / 726,492,043.70-1,089,738,065.55-508,388,657.30

Finding the Fourth Proportional to 726,492,043.70, 1,089,738,065.55 and 508,388,657.30

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Solution

The fourth proportional to 726,492,043.70, 1,089,738,065.55 and 508,388,657.30 is: 762,582,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,492,043.70 : 1,089,738,065.55 = 508,388,657.30 : x
  2. Step 2: Convert to fraction form
    726,492,043.70/1,089,738,065.55 = 508,388,657.30/x
  3. Step 3: Cross multiply
    726,492,043.70x = 1,089,738,065.55 × 508,388,657.30
  4. Step 4: Simplify right side
    726,492,043.70x = 554,010,471,953,663,872
  5. Step 5: Solve for x
    x = 554,010,471,953,663,872/726,492,043.70
  6. Step 6: Final answer
    x = 762,582,985.95

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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.