Home / 368,776,143.12-508,904,930.48-201,508,729.73

Finding the Fourth Proportional to 368,776,143.12, 508,904,930.48 and 201,508,729.73

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Solution

The fourth proportional to 368,776,143.12, 508,904,930.48 and 201,508,729.73 is: 278,078,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,776,143.12 : 508,904,930.48 = 201,508,729.73 : x
  2. Step 2: Convert to fraction form
    368,776,143.12/508,904,930.48 = 201,508,729.73/x
  3. Step 3: Cross multiply
    368,776,143.12x = 508,904,930.48 × 201,508,729.73
  4. Step 4: Simplify right side
    368,776,143.12x = 102,548,786,090,806,688
  5. Step 5: Solve for x
    x = 102,548,786,090,806,688/368,776,143.12
  6. Step 6: Final answer
    x = 278,078,688.13

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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.