Home / 649,462,149.23-896,387,971.23-385,290,774.23

Finding the Fourth Proportional to 649,462,149.23, 896,387,971.23 and 385,290,774.23

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Solution

The fourth proportional to 649,462,149.23, 896,387,971.23 and 385,290,774.23 is: 531,778,512.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,462,149.23 : 896,387,971.23 = 385,290,774.23 : x
  2. Step 2: Convert to fraction form
    649,462,149.23/896,387,971.23 = 385,290,774.23/x
  3. Step 3: Cross multiply
    649,462,149.23x = 896,387,971.23 × 385,290,774.23
  4. Step 4: Simplify right side
    649,462,149.23x = 345,370,015,441,183,744
  5. Step 5: Solve for x
    x = 345,370,015,441,183,744/649,462,149.23
  6. Step 6: Final answer
    x = 531,778,512.19

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.