Home / 863,136,016.30-1,294,704,024.45-378,461,824.30

Finding the Fourth Proportional to 863,136,016.30, 1,294,704,024.45 and 378,461,824.30

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Solution

The fourth proportional to 863,136,016.30, 1,294,704,024.45 and 378,461,824.30 is: 567,692,736.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,136,016.30 : 1,294,704,024.45 = 378,461,824.30 : x
  2. Step 2: Convert to fraction form
    863,136,016.30/1,294,704,024.45 = 378,461,824.30/x
  3. Step 3: Cross multiply
    863,136,016.30x = 1,294,704,024.45 × 378,461,824.30
  4. Step 4: Simplify right side
    863,136,016.30x = 489,996,047,021,898,816
  5. Step 5: Solve for x
    x = 489,996,047,021,898,816/863,136,016.30
  6. Step 6: Final answer
    x = 567,692,736.45

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Double scale
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Similar ratio
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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.