Home / 77,378,160.23-106,781,857.50-42,570,103.33

Finding the Fourth Proportional to 77,378,160.23, 106,781,857.50 and 42,570,103.33

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Solution

The fourth proportional to 77,378,160.23, 106,781,857.50 and 42,570,103.33 is: 58,746,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,378,160.23 : 106,781,857.50 = 42,570,103.33 : x
  2. Step 2: Convert to fraction form
    77,378,160.23/106,781,857.50 = 42,570,103.33/x
  3. Step 3: Cross multiply
    77,378,160.23x = 106,781,857.50 × 42,570,103.33
  4. Step 4: Simplify right side
    77,378,160.23x = 4,545,714,707,383,806
  5. Step 5: Solve for x
    x = 4,545,714,707,383,806/77,378,160.23
  6. Step 6: Final answer
    x = 58,746,740.61

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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.