Home / 128,788,561-193,158,200.07-50,005,069.96

Finding the Fourth Proportional to 128,788,561, 193,158,200.07 and 50,005,069.96

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Solution

The fourth proportional to 128,788,561, 193,158,200.07 and 50,005,069.96 is: 74,998,037.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,788,561 : 193,158,200.07 = 50,005,069.96 : x
  2. Step 2: Convert to fraction form
    128,788,561/193,158,200.07 = 50,005,069.96/x
  3. Step 3: Cross multiply
    128,788,561x = 193,158,200.07 × 50,005,069.96
  4. Step 4: Simplify right side
    128,788,561x = 9,658,889,307,848,026
  5. Step 5: Solve for x
    x = 9,658,889,307,848,026/128,788,561
  6. Step 6: Final answer
    x = 74,998,037.35

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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.