Home / 318,500,243.37-439,441,513.47-205,421,887.08

Finding the Fourth Proportional to 318,500,243.37, 439,441,513.47 and 205,421,887.08

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Solution

The fourth proportional to 318,500,243.37, 439,441,513.47 and 205,421,887.08 is: 283,424,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,500,243.37 : 439,441,513.47 = 205,421,887.08 : x
  2. Step 2: Convert to fraction form
    318,500,243.37/439,441,513.47 = 205,421,887.08/x
  3. Step 3: Cross multiply
    318,500,243.37x = 439,441,513.47 × 205,421,887.08
  4. Step 4: Simplify right side
    318,500,243.37x = 90,270,904,958,298,656
  5. Step 5: Solve for x
    x = 90,270,904,958,298,656/318,500,243.37
  6. Step 6: Final answer
    x = 283,424,916.74

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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.