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Finding the Fourth Proportional to 128,998,483.73, 181,108,060.58 and 128,998,483.73

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Solution

The fourth proportional to 128,998,483.73, 181,108,060.58 and 128,998,483.73 is: 181,108,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,998,483.73 : 181,108,060.58 = 128,998,483.73 : x
  2. Step 2: Convert to fraction form
    128,998,483.73/181,108,060.58 = 128,998,483.73/x
  3. Step 3: Cross multiply
    128,998,483.73x = 181,108,060.58 × 128,998,483.73
  4. Step 4: Simplify right side
    128,998,483.73x = 23,362,665,204,550,448
  5. Step 5: Solve for x
    x = 23,362,665,204,550,448/128,998,483.73
  6. Step 6: Final answer
    x = 181,108,060.58

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.