Home / 191,346,612.89-264,139,948.26-128,659,046.30

Finding the Fourth Proportional to 191,346,612.89, 264,139,948.26 and 128,659,046.30

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Solution

The fourth proportional to 191,346,612.89, 264,139,948.26 and 128,659,046.30 is: 177,604,365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,346,612.89 : 264,139,948.26 = 128,659,046.30 : x
  2. Step 2: Convert to fraction form
    191,346,612.89/264,139,948.26 = 128,659,046.30/x
  3. Step 3: Cross multiply
    191,346,612.89x = 264,139,948.26 × 128,659,046.30
  4. Step 4: Simplify right side
    191,346,612.89x = 33,983,993,832,862,944
  5. Step 5: Solve for x
    x = 33,983,993,832,862,944/191,346,612.89
  6. Step 6: Final answer
    x = 177,604,365.81

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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.