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Finding the Fourth Proportional to 472,393,149.60, 708,589,724.40 and 357,601,893.60

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Solution

The fourth proportional to 472,393,149.60, 708,589,724.40 and 357,601,893.60 is: 536,402,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,149.60 : 708,589,724.40 = 357,601,893.60 : x
  2. Step 2: Convert to fraction form
    472,393,149.60/708,589,724.40 = 357,601,893.60/x
  3. Step 3: Cross multiply
    472,393,149.60x = 708,589,724.40 × 357,601,893.60
  4. Step 4: Simplify right side
    472,393,149.60x = 253,393,027,230,942,144
  5. Step 5: Solve for x
    x = 253,393,027,230,942,144/472,393,149.60
  6. Step 6: Final answer
    x = 536,402,840.40

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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.