Home / 505,020,010.60-757,530,015.90-489,903,466.60

Finding the Fourth Proportional to 505,020,010.60, 757,530,015.90 and 489,903,466.60

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Solution

The fourth proportional to 505,020,010.60, 757,530,015.90 and 489,903,466.60 is: 734,855,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,020,010.60 : 757,530,015.90 = 489,903,466.60 : x
  2. Step 2: Convert to fraction form
    505,020,010.60/757,530,015.90 = 489,903,466.60/x
  3. Step 3: Cross multiply
    505,020,010.60x = 757,530,015.90 × 489,903,466.60
  4. Step 4: Simplify right side
    505,020,010.60x = 371,116,580,842,963,136
  5. Step 5: Solve for x
    x = 371,116,580,842,963,136/505,020,010.60
  6. Step 6: Final answer
    x = 734,855,199.90

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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.