Home / 509,970,613.20-765,144,876.60-203,482,683.60

Finding the Fourth Proportional to 509,970,613.20, 765,144,876.60 and 203,482,683.60

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Solution

The fourth proportional to 509,970,613.20, 765,144,876.60 and 203,482,683.60 is: 305,299,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,970,613.20 : 765,144,876.60 = 203,482,683.60 : x
  2. Step 2: Convert to fraction form
    509,970,613.20/765,144,876.60 = 203,482,683.60/x
  3. Step 3: Cross multiply
    509,970,613.20x = 765,144,876.60 × 203,482,683.60
  4. Step 4: Simplify right side
    509,970,613.20x = 155,693,732,833,358,848
  5. Step 5: Solve for x
    x = 155,693,732,833,358,848/509,970,613.20
  6. Step 6: Final answer
    x = 305,299,420.80

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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.