Home / 402,409,337.80-603,614,006.70-279,327,602.20

Finding the Fourth Proportional to 402,409,337.80, 603,614,006.70 and 279,327,602.20

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Solution

The fourth proportional to 402,409,337.80, 603,614,006.70 and 279,327,602.20 is: 418,991,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,337.80 : 603,614,006.70 = 279,327,602.20 : x
  2. Step 2: Convert to fraction form
    402,409,337.80/603,614,006.70 = 279,327,602.20/x
  3. Step 3: Cross multiply
    402,409,337.80x = 603,614,006.70 × 279,327,602.20
  4. Step 4: Simplify right side
    402,409,337.80x = 168,606,053,145,845,728
  5. Step 5: Solve for x
    x = 168,606,053,145,845,728/402,409,337.80
  6. Step 6: Final answer
    x = 418,991,403.30

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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.