Home / 311,398,664.40-467,062,567.20-81,390,999.60

Finding the Fourth Proportional to 311,398,664.40, 467,062,567.20 and 81,390,999.60

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Solution

The fourth proportional to 311,398,664.40, 467,062,567.20 and 81,390,999.60 is: 122,077,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,398,664.40 : 467,062,567.20 = 81,390,999.60 : x
  2. Step 2: Convert to fraction form
    311,398,664.40/467,062,567.20 = 81,390,999.60/x
  3. Step 3: Cross multiply
    311,398,664.40x = 467,062,567.20 × 81,390,999.60
  4. Step 4: Simplify right side
    311,398,664.40x = 38,014,689,220,150,168
  5. Step 5: Solve for x
    x = 38,014,689,220,150,168/311,398,664.40
  6. Step 6: Final answer
    x = 122,077,239.13

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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.