Home / 128,760,066.05-193,140,099.08-123,737,948.60

Finding the Fourth Proportional to 128,760,066.05, 193,140,099.08 and 123,737,948.60

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Solution

The fourth proportional to 128,760,066.05, 193,140,099.08 and 123,737,948.60 is: 185,606,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,760,066.05 : 193,140,099.08 = 123,737,948.60 : x
  2. Step 2: Convert to fraction form
    128,760,066.05/193,140,099.08 = 123,737,948.60/x
  3. Step 3: Cross multiply
    128,760,066.05x = 193,140,099.08 × 123,737,948.60
  4. Step 4: Simplify right side
    128,760,066.05x = 23,898,759,651,941,256
  5. Step 5: Solve for x
    x = 23,898,759,651,941,256/128,760,066.05
  6. Step 6: Final answer
    x = 185,606,922.90

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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.