Home / 485,338,123.92-727,901,513.04-130,804,131.48

Finding the Fourth Proportional to 485,338,123.92, 727,901,513.04 and 130,804,131.48

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Solution

The fourth proportional to 485,338,123.92, 727,901,513.04 and 130,804,131.48 is: 196,177,717.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,338,123.92 : 727,901,513.04 = 130,804,131.48 : x
  2. Step 2: Convert to fraction form
    485,338,123.92/727,901,513.04 = 130,804,131.48/x
  3. Step 3: Cross multiply
    485,338,123.92x = 727,901,513.04 × 130,804,131.48
  4. Step 4: Simplify right side
    485,338,123.92x = 95,212,525,216,175,088
  5. Step 5: Solve for x
    x = 95,212,525,216,175,088/485,338,123.92
  6. Step 6: Final answer
    x = 196,177,717.19

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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.