Home / 726,492,066.70-1,089,738,100.05-508,388,680.30

Finding the Fourth Proportional to 726,492,066.70, 1,089,738,100.05 and 508,388,680.30

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Solution

The fourth proportional to 726,492,066.70, 1,089,738,100.05 and 508,388,680.30 is: 762,583,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,492,066.70 : 1,089,738,100.05 = 508,388,680.30 : x
  2. Step 2: Convert to fraction form
    726,492,066.70/1,089,738,100.05 = 508,388,680.30/x
  3. Step 3: Cross multiply
    726,492,066.70x = 1,089,738,100.05 × 508,388,680.30
  4. Step 4: Simplify right side
    726,492,066.70x = 554,010,514,557,048,832
  5. Step 5: Solve for x
    x = 554,010,514,557,048,832/726,492,066.70
  6. Step 6: Final answer
    x = 762,583,020.45

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Double scale
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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.