Home / 128,462,032.97-177,277,156.49-69,724,694.87

Finding the Fourth Proportional to 128,462,032.97, 177,277,156.49 and 69,724,694.87

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Solution

The fourth proportional to 128,462,032.97, 177,277,156.49 and 69,724,694.87 is: 96,219,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,462,032.97 : 177,277,156.49 = 69,724,694.87 : x
  2. Step 2: Convert to fraction form
    128,462,032.97/177,277,156.49 = 69,724,694.87/x
  3. Step 3: Cross multiply
    128,462,032.97x = 177,277,156.49 × 69,724,694.87
  4. Step 4: Simplify right side
    128,462,032.97x = 12,360,595,643,337,868
  5. Step 5: Solve for x
    x = 12,360,595,643,337,868/128,462,032.97
  6. Step 6: Final answer
    x = 96,219,835.21

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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.