Home / 655,209,643.54-904,208,889.09-357,865,912.92

Finding the Fourth Proportional to 655,209,643.54, 904,208,889.09 and 357,865,912.92

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Solution

The fourth proportional to 655,209,643.54, 904,208,889.09 and 357,865,912.92 is: 493,865,654.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,209,643.54 : 904,208,889.09 = 357,865,912.92 : x
  2. Step 2: Convert to fraction form
    655,209,643.54/904,208,889.09 = 357,865,912.92/x
  3. Step 3: Cross multiply
    655,209,643.54x = 904,208,889.09 × 357,865,912.92
  4. Step 4: Simplify right side
    655,209,643.54x = 323,585,539,562,782,592
  5. Step 5: Solve for x
    x = 323,585,539,562,782,592/655,209,643.54
  6. Step 6: Final answer
    x = 493,865,654.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.