Home / 485,652,021.40-728,478,032.10-330,683,825.80

Finding the Fourth Proportional to 485,652,021.40, 728,478,032.10 and 330,683,825.80

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Solution

The fourth proportional to 485,652,021.40, 728,478,032.10 and 330,683,825.80 is: 496,025,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,652,021.40 : 728,478,032.10 = 330,683,825.80 : x
  2. Step 2: Convert to fraction form
    485,652,021.40/728,478,032.10 = 330,683,825.80/x
  3. Step 3: Cross multiply
    485,652,021.40x = 728,478,032.10 × 330,683,825.80
  4. Step 4: Simplify right side
    485,652,021.40x = 240,895,902,666,083,232
  5. Step 5: Solve for x
    x = 240,895,902,666,083,232/485,652,021.40
  6. Step 6: Final answer
    x = 496,025,738.70

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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.