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Finding the Fourth Proportional to 479,472,003.20, 719,208,004.80 and 479,472,003.20

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Solution

The fourth proportional to 479,472,003.20, 719,208,004.80 and 479,472,003.20 is: 719,208,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,472,003.20 : 719,208,004.80 = 479,472,003.20 : x
  2. Step 2: Convert to fraction form
    479,472,003.20/719,208,004.80 = 479,472,003.20/x
  3. Step 3: Cross multiply
    479,472,003.20x = 719,208,004.80 × 479,472,003.20
  4. Step 4: Simplify right side
    479,472,003.20x = 344,840,102,778,931,200
  5. Step 5: Solve for x
    x = 344,840,102,778,931,200/479,472,003.20
  6. Step 6: Final answer
    x = 719,208,004.80

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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.