Home / 77,378,160.54-106,781,857.94-42,570,103.64

Finding the Fourth Proportional to 77,378,160.54, 106,781,857.94 and 42,570,103.64

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Solution

The fourth proportional to 77,378,160.54, 106,781,857.94 and 42,570,103.64 is: 58,746,741.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,378,160.54 : 106,781,857.94 = 42,570,103.64 : x
  2. Step 2: Convert to fraction form
    77,378,160.54/106,781,857.94 = 42,570,103.64/x
  3. Step 3: Cross multiply
    77,378,160.54x = 106,781,857.94 × 42,570,103.64
  4. Step 4: Simplify right side
    77,378,160.54x = 4,545,714,759,311,477
  5. Step 5: Solve for x
    x = 4,545,714,759,311,477/77,378,160.54
  6. Step 6: Final answer
    x = 58,746,741.04

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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.