Home / 72,470,398-99,976,195.20-43,085,056.92

Finding the Fourth Proportional to 72,470,398, 99,976,195.20 and 43,085,056.92

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Solution

The fourth proportional to 72,470,398, 99,976,195.20 and 43,085,056.92 is: 59,437,786.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,470,398 : 99,976,195.20 = 43,085,056.92 : x
  2. Step 2: Convert to fraction form
    72,470,398/99,976,195.20 = 43,085,056.92/x
  3. Step 3: Cross multiply
    72,470,398x = 99,976,195.20 × 43,085,056.92
  4. Step 4: Simplify right side
    72,470,398x = 4,307,480,060,837,031
  5. Step 5: Solve for x
    x = 4,307,480,060,837,031/72,470,398
  6. Step 6: Final answer
    x = 59,437,786.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.