Home / 191,346,610.39-264,139,944.81-128,659,043.80

Finding the Fourth Proportional to 191,346,610.39, 264,139,944.81 and 128,659,043.80

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Solution

The fourth proportional to 191,346,610.39, 264,139,944.81 and 128,659,043.80 is: 177,604,362.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,346,610.39 : 264,139,944.81 = 128,659,043.80 : x
  2. Step 2: Convert to fraction form
    191,346,610.39/264,139,944.81 = 128,659,043.80/x
  3. Step 3: Cross multiply
    191,346,610.39x = 264,139,944.81 × 128,659,043.80
  4. Step 4: Simplify right side
    191,346,610.39x = 33,983,992,728,639,372
  5. Step 5: Solve for x
    x = 33,983,992,728,639,372/191,346,610.39
  6. Step 6: Final answer
    x = 177,604,362.36

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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.