Home / 128,902,332.07-193,351,603.60-31,858,048

Finding the Fourth Proportional to 128,902,332.07, 193,351,603.60 and 31,858,048

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Solution

The fourth proportional to 128,902,332.07, 193,351,603.60 and 31,858,048 is: 47,786,603.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,902,332.07 : 193,351,603.60 = 31,858,048 : x
  2. Step 2: Convert to fraction form
    128,902,332.07/193,351,603.60 = 31,858,048/x
  3. Step 3: Cross multiply
    128,902,332.07x = 193,351,603.60 × 31,858,048
  4. Step 4: Simplify right side
    128,902,332.07x = 6,159,804,668,365,773
  5. Step 5: Solve for x
    x = 6,159,804,668,365,773/128,902,332.07
  6. Step 6: Final answer
    x = 47,786,603.78

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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.