Home / 542,749,208.31-812,069,354.79-321,539,274.95

Finding the Fourth Proportional to 542,749,208.31, 812,069,354.79 and 321,539,274.95

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Solution

The fourth proportional to 542,749,208.31, 812,069,354.79 and 321,539,274.95 is: 481,091,796.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,749,208.31 : 812,069,354.79 = 321,539,274.95 : x
  2. Step 2: Convert to fraction form
    542,749,208.31/812,069,354.79 = 321,539,274.95/x
  3. Step 3: Cross multiply
    542,749,208.31x = 812,069,354.79 × 321,539,274.95
  4. Step 4: Simplify right side
    542,749,208.31x = 261,112,191,544,230,560
  5. Step 5: Solve for x
    x = 261,112,191,544,230,560/542,749,208.31
  6. Step 6: Final answer
    x = 481,091,796.26

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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.