Home / 559,978,879.02-772,655,487.30-321,778,037.89

Finding the Fourth Proportional to 559,978,879.02, 772,655,487.30 and 321,778,037.89

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Solution

The fourth proportional to 559,978,879.02, 772,655,487.30 and 321,778,037.89 is: 443,987,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,978,879.02 : 772,655,487.30 = 321,778,037.89 : x
  2. Step 2: Convert to fraction form
    559,978,879.02/772,655,487.30 = 321,778,037.89/x
  3. Step 3: Cross multiply
    559,978,879.02x = 772,655,487.30 × 321,778,037.89
  4. Step 4: Simplify right side
    559,978,879.02x = 248,623,566,668,335,776
  5. Step 5: Solve for x
    x = 248,623,566,668,335,776/559,978,879.02
  6. Step 6: Final answer
    x = 443,987,400.21

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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.