Home / 664,018,687.04-916,426,579.84-385,560,202.37

Finding the Fourth Proportional to 664,018,687.04, 916,426,579.84 and 385,560,202.37

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Solution

The fourth proportional to 664,018,687.04, 916,426,579.84 and 385,560,202.37 is: 532,119,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,018,687.04 : 916,426,579.84 = 385,560,202.37 : x
  2. Step 2: Convert to fraction form
    664,018,687.04/916,426,579.84 = 385,560,202.37/x
  3. Step 3: Cross multiply
    664,018,687.04x = 916,426,579.84 × 385,560,202.37
  4. Step 4: Simplify right side
    664,018,687.04x = 353,337,617,574,811,328
  5. Step 5: Solve for x
    x = 353,337,617,574,811,328/664,018,687.04
  6. Step 6: Final answer
    x = 532,119,990.71

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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.