Home / 330,143,017.50-455,117,189.67-230,715,076.86

Finding the Fourth Proportional to 330,143,017.50, 455,117,189.67 and 230,715,076.86

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Solution

The fourth proportional to 330,143,017.50, 455,117,189.67 and 230,715,076.86 is: 318,051,243.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,143,017.50 : 455,117,189.67 = 230,715,076.86 : x
  2. Step 2: Convert to fraction form
    330,143,017.50/455,117,189.67 = 230,715,076.86/x
  3. Step 3: Cross multiply
    330,143,017.50x = 455,117,189.67 × 230,715,076.86
  4. Step 4: Simplify right side
    330,143,017.50x = 105,002,397,395,021,264
  5. Step 5: Solve for x
    x = 105,002,397,395,021,264/330,143,017.50
  6. Step 6: Final answer
    x = 318,051,243.94

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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.