Home / 863,136,016.80-1,294,704,025.20-518,478,813.60

Finding the Fourth Proportional to 863,136,016.80, 1,294,704,025.20 and 518,478,813.60

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Solution

The fourth proportional to 863,136,016.80, 1,294,704,025.20 and 518,478,813.60 is: 777,718,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,136,016.80 : 1,294,704,025.20 = 518,478,813.60 : x
  2. Step 2: Convert to fraction form
    863,136,016.80/1,294,704,025.20 = 518,478,813.60/x
  3. Step 3: Cross multiply
    863,136,016.80x = 1,294,704,025.20 × 518,478,813.60
  4. Step 4: Simplify right side
    863,136,016.80x = 671,276,606,948,840,576
  5. Step 5: Solve for x
    x = 671,276,606,948,840,576/863,136,016.80
  6. Step 6: Final answer
    x = 777,718,220.40

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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.