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Finding the Fourth Proportional to 72,580,612.80, 108,758,944.80 and 62,950,814.40

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Solution

The fourth proportional to 72,580,612.80, 108,758,944.80 and 62,950,814.40 is: 94,329,103.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580,612.80 : 108,758,944.80 = 62,950,814.40 : x
  2. Step 2: Convert to fraction form
    72,580,612.80/108,758,944.80 = 62,950,814.40/x
  3. Step 3: Cross multiply
    72,580,612.80x = 108,758,944.80 × 62,950,814.40
  4. Step 4: Simplify right side
    72,580,612.80x = 6,846,464,148,444,645
  5. Step 5: Solve for x
    x = 6,846,464,148,444,645/72,580,612.80
  6. Step 6: Final answer
    x = 94,329,103.66

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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.