Home / 385,962,376.86-578,469,254.18-178,420,051.76

Finding the Fourth Proportional to 385,962,376.86, 578,469,254.18 and 178,420,051.76

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Solution

The fourth proportional to 385,962,376.86, 578,469,254.18 and 178,420,051.76 is: 267,410,816.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,962,376.86 : 578,469,254.18 = 178,420,051.76 : x
  2. Step 2: Convert to fraction form
    385,962,376.86/578,469,254.18 = 178,420,051.76/x
  3. Step 3: Cross multiply
    385,962,376.86x = 578,469,254.18 × 178,420,051.76
  4. Step 4: Simplify right side
    385,962,376.86x = 103,210,514,268,579,744
  5. Step 5: Solve for x
    x = 103,210,514,268,579,744/385,962,376.86
  6. Step 6: Final answer
    x = 267,410,816.33

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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.