Home / 312,154,511.68-430,753,024.38-171,025,538.68

Finding the Fourth Proportional to 312,154,511.68, 430,753,024.38 and 171,025,538.68

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Solution

The fourth proportional to 312,154,511.68, 430,753,024.38 and 171,025,538.68 is: 236,004,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,154,511.68 : 430,753,024.38 = 171,025,538.68 : x
  2. Step 2: Convert to fraction form
    312,154,511.68/430,753,024.38 = 171,025,538.68/x
  3. Step 3: Cross multiply
    312,154,511.68x = 430,753,024.38 × 171,025,538.68
  4. Step 4: Simplify right side
    312,154,511.68x = 73,669,768,032,628,672
  5. Step 5: Solve for x
    x = 73,669,768,032,628,672/312,154,511.68
  6. Step 6: Final answer
    x = 236,004,175.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.