Home / 402,409,180.15-603,613,770.23-387,103,679.35

Finding the Fourth Proportional to 402,409,180.15, 603,613,770.23 and 387,103,679.35

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Solution

The fourth proportional to 402,409,180.15, 603,613,770.23 and 387,103,679.35 is: 580,655,519.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,180.15 : 603,613,770.23 = 387,103,679.35 : x
  2. Step 2: Convert to fraction form
    402,409,180.15/603,613,770.23 = 387,103,679.35/x
  3. Step 3: Cross multiply
    402,409,180.15x = 603,613,770.23 × 387,103,679.35
  4. Step 4: Simplify right side
    402,409,180.15x = 233,661,111,360,423,008
  5. Step 5: Solve for x
    x = 233,661,111,360,423,008/402,409,180.15
  6. Step 6: Final answer
    x = 580,655,519.03

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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.