Home / 257,046,827.36-385,582,641.39-84,519,821.12

Finding the Fourth Proportional to 257,046,827.36, 385,582,641.39 and 84,519,821.12

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Solution

The fourth proportional to 257,046,827.36, 385,582,641.39 and 84,519,821.12 is: 126,783,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,046,827.36 : 385,582,641.39 = 84,519,821.12 : x
  2. Step 2: Convert to fraction form
    257,046,827.36/385,582,641.39 = 84,519,821.12/x
  3. Step 3: Cross multiply
    257,046,827.36x = 385,582,641.39 × 84,519,821.12
  4. Step 4: Simplify right side
    257,046,827.36x = 32,589,375,875,331,992
  5. Step 5: Solve for x
    x = 32,589,375,875,331,992/257,046,827.36
  6. Step 6: Final answer
    x = 126,783,809.05

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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.