Home / 522,049,172.28-720,413,468.55-287,099,827.08

Finding the Fourth Proportional to 522,049,172.28, 720,413,468.55 and 287,099,827.08

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Solution

The fourth proportional to 522,049,172.28, 720,413,468.55 and 287,099,827.08 is: 396,189,848.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,049,172.28 : 720,413,468.55 = 287,099,827.08 : x
  2. Step 2: Convert to fraction form
    522,049,172.28/720,413,468.55 = 287,099,827.08/x
  3. Step 3: Cross multiply
    522,049,172.28x = 720,413,468.55 × 287,099,827.08
  4. Step 4: Simplify right side
    522,049,172.28x = 206,830,582,246,808,000
  5. Step 5: Solve for x
    x = 206,830,582,246,808,000/522,049,172.28
  6. Step 6: Final answer
    x = 396,189,848.06

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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.