Home / 577,172,856.72-796,477,195.74-312,849,174.60

Finding the Fourth Proportional to 577,172,856.72, 796,477,195.74 and 312,849,174.60

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Solution

The fourth proportional to 577,172,856.72, 796,477,195.74 and 312,849,174.60 is: 431,720,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,172,856.72 : 796,477,195.74 = 312,849,174.60 : x
  2. Step 2: Convert to fraction form
    577,172,856.72/796,477,195.74 = 312,849,174.60/x
  3. Step 3: Cross multiply
    577,172,856.72x = 796,477,195.74 × 312,849,174.60
  4. Step 4: Simplify right side
    577,172,856.72x = 249,177,233,274,981,664
  5. Step 5: Solve for x
    x = 249,177,233,274,981,664/577,172,856.72
  6. Step 6: Final answer
    x = 431,720,290.33

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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.