Home / 402,409,191.15-603,613,786.73-387,103,690.35

Finding the Fourth Proportional to 402,409,191.15, 603,613,786.73 and 387,103,690.35

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Solution

The fourth proportional to 402,409,191.15, 603,613,786.73 and 387,103,690.35 is: 580,655,535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,191.15 : 603,613,786.73 = 387,103,690.35 : x
  2. Step 2: Convert to fraction form
    402,409,191.15/603,613,786.73 = 387,103,690.35/x
  3. Step 3: Cross multiply
    402,409,191.15x = 603,613,786.73 × 387,103,690.35
  4. Step 4: Simplify right side
    402,409,191.15x = 233,661,124,389,320,896
  5. Step 5: Solve for x
    x = 233,661,124,389,320,896/402,409,191.15
  6. Step 6: Final answer
    x = 580,655,535.53

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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.