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Finding the Fourth Proportional to 518,157,793.60, 776,102,949.60 and 450,133,345.60

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Solution

The fourth proportional to 518,157,793.60, 776,102,949.60 and 450,133,345.60 is: 674,215,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,157,793.60 : 776,102,949.60 = 450,133,345.60 : x
  2. Step 2: Convert to fraction form
    518,157,793.60/776,102,949.60 = 450,133,345.60/x
  3. Step 3: Cross multiply
    518,157,793.60x = 776,102,949.60 × 450,133,345.60
  4. Step 4: Simplify right side
    518,157,793.60x = 349,349,817,233,476,224
  5. Step 5: Solve for x
    x = 349,349,817,233,476,224/518,157,793.60
  6. Step 6: Final answer
    x = 674,215,116.61

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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.