Home / 430,255,402.20-645,693,992.64-171,321,396.48

Finding the Fourth Proportional to 430,255,402.20, 645,693,992.64 and 171,321,396.48

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Solution

The fourth proportional to 430,255,402.20, 645,693,992.64 and 171,321,396.48 is: 257,105,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,255,402.20 : 645,693,992.64 = 171,321,396.48 : x
  2. Step 2: Convert to fraction form
    430,255,402.20/645,693,992.64 = 171,321,396.48/x
  3. Step 3: Cross multiply
    430,255,402.20x = 645,693,992.64 × 171,321,396.48
  4. Step 4: Simplify right side
    430,255,402.20x = 110,621,196,517,831,632
  5. Step 5: Solve for x
    x = 110,621,196,517,831,632/430,255,402.20
  6. Step 6: Final answer
    x = 257,105,886.30

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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.