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Finding the Fourth Proportional to 469,695,340.15, 648,140,978.63 and 257,991,229.96

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Solution

The fourth proportional to 469,695,340.15, 648,140,978.63 and 257,991,229.96 is: 356,006,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,695,340.15 : 648,140,978.63 = 257,991,229.96 : x
  2. Step 2: Convert to fraction form
    469,695,340.15/648,140,978.63 = 257,991,229.96/x
  3. Step 3: Cross multiply
    469,695,340.15x = 648,140,978.63 × 257,991,229.96
  4. Step 4: Simplify right side
    469,695,340.15x = 167,214,688,265,449,056
  5. Step 5: Solve for x
    x = 167,214,688,265,449,056/469,695,340.15
  6. Step 6: Final answer
    x = 356,006,700.45

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Why These Related Problems?

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