Home / 379,827,070.69-569,729,977.21-121,057,818.97

Finding the Fourth Proportional to 379,827,070.69, 569,729,977.21 and 121,057,818.97

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Solution

The fourth proportional to 379,827,070.69, 569,729,977.21 and 121,057,818.97 is: 181,583,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,827,070.69 : 569,729,977.21 = 121,057,818.97 : x
  2. Step 2: Convert to fraction form
    379,827,070.69/569,729,977.21 = 121,057,818.97/x
  3. Step 3: Cross multiply
    379,827,070.69x = 569,729,977.21 × 121,057,818.97
  4. Step 4: Simplify right side
    379,827,070.69x = 68,970,268,439,416,472
  5. Step 5: Solve for x
    x = 68,970,268,439,416,472/379,827,070.69
  6. Step 6: Final answer
    x = 181,583,340.85

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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.