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Finding the Fourth Proportional to 661,286,989.93, 992,543,395.06 and 333,992,349.66

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Solution

The fourth proportional to 661,286,989.93, 992,543,395.06 and 333,992,349.66 is: 501,298,083.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,286,989.93 : 992,543,395.06 = 333,992,349.66 : x
  2. Step 2: Convert to fraction form
    661,286,989.93/992,543,395.06 = 333,992,349.66/x
  3. Step 3: Cross multiply
    661,286,989.93x = 992,543,395.06 × 333,992,349.66
  4. Step 4: Simplify right side
    661,286,989.93x = 331,501,900,655,603,072
  5. Step 5: Solve for x
    x = 331,501,900,655,603,072/661,286,989.93
  6. Step 6: Final answer
    x = 501,298,083.44

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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.