Home / 407,877,798.66-611,936,085.54-131,523,454.94

Finding the Fourth Proportional to 407,877,798.66, 611,936,085.54 and 131,523,454.94

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Solution

The fourth proportional to 407,877,798.66, 611,936,085.54 and 131,523,454.94 is: 197,323,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,877,798.66 : 611,936,085.54 = 131,523,454.94 : x
  2. Step 2: Convert to fraction form
    407,877,798.66/611,936,085.54 = 131,523,454.94/x
  3. Step 3: Cross multiply
    407,877,798.66x = 611,936,085.54 × 131,523,454.94
  4. Step 4: Simplify right side
    407,877,798.66x = 80,483,948,172,680,176
  5. Step 5: Solve for x
    x = 80,483,948,172,680,176/407,877,798.66
  6. Step 6: Final answer
    x = 197,323,679.88

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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.