Home / 243,173,861.72-364,783,216.07-79,412,476.55

Finding the Fourth Proportional to 243,173,861.72, 364,783,216.07 and 79,412,476.55

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Solution

The fourth proportional to 243,173,861.72, 364,783,216.07 and 79,412,476.55 is: 119,126,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,173,861.72 : 364,783,216.07 = 79,412,476.55 : x
  2. Step 2: Convert to fraction form
    243,173,861.72/364,783,216.07 = 79,412,476.55/x
  3. Step 3: Cross multiply
    243,173,861.72x = 364,783,216.07 × 79,412,476.55
  4. Step 4: Simplify right side
    243,173,861.72x = 28,968,338,589,771,480
  5. Step 5: Solve for x
    x = 28,968,338,589,771,480/243,173,861.72
  6. Step 6: Final answer
    x = 119,126,037.58

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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.