Home / 658,989,255.12-909,412,032.24-361,650,755.78

Finding the Fourth Proportional to 658,989,255.12, 909,412,032.24 and 361,650,755.78

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Solution

The fourth proportional to 658,989,255.12, 909,412,032.24 and 361,650,755.78 is: 499,081,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,989,255.12 : 909,412,032.24 = 361,650,755.78 : x
  2. Step 2: Convert to fraction form
    658,989,255.12/909,412,032.24 = 361,650,755.78/x
  3. Step 3: Cross multiply
    658,989,255.12x = 909,412,032.24 × 361,650,755.78
  4. Step 4: Simplify right side
    658,989,255.12x = 328,889,548,775,021,696
  5. Step 5: Solve for x
    x = 328,889,548,775,021,696/658,989,255.12
  6. Step 6: Final answer
    x = 499,081,807.81

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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.