Home / 559,978,878.02-772,655,485.92-321,778,036.89

Finding the Fourth Proportional to 559,978,878.02, 772,655,485.92 and 321,778,036.89

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Solution

The fourth proportional to 559,978,878.02, 772,655,485.92 and 321,778,036.89 is: 443,987,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,978,878.02 : 772,655,485.92 = 321,778,036.89 : x
  2. Step 2: Convert to fraction form
    559,978,878.02/772,655,485.92 = 321,778,036.89/x
  3. Step 3: Cross multiply
    559,978,878.02x = 772,655,485.92 × 321,778,036.89
  4. Step 4: Simplify right side
    559,978,878.02x = 248,623,565,450,419,968
  5. Step 5: Solve for x
    x = 248,623,565,450,419,968/559,978,878.02
  6. Step 6: Final answer
    x = 443,987,398.83

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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.