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Finding the Fourth Proportional to 472,403,600.40, 708,605,400.60 and 443,705,786.40

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Solution

The fourth proportional to 472,403,600.40, 708,605,400.60 and 443,705,786.40 is: 665,558,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,403,600.40 : 708,605,400.60 = 443,705,786.40 : x
  2. Step 2: Convert to fraction form
    472,403,600.40/708,605,400.60 = 443,705,786.40/x
  3. Step 3: Cross multiply
    472,403,600.40x = 708,605,400.60 × 443,705,786.40
  4. Step 4: Simplify right side
    472,403,600.40x = 314,412,316,520,510,016
  5. Step 5: Solve for x
    x = 314,412,316,520,510,016/472,403,600.40
  6. Step 6: Final answer
    x = 665,558,679.60

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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.