Home / 90,380,829.25-124,739,178.15-55,119,091.51

Finding the Fourth Proportional to 90,380,829.25, 124,739,178.15 and 55,119,091.51

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Solution

The fourth proportional to 90,380,829.25, 124,739,178.15 and 55,119,091.51 is: 76,072,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,380,829.25 : 124,739,178.15 = 55,119,091.51 : x
  2. Step 2: Convert to fraction form
    90,380,829.25/124,739,178.15 = 55,119,091.51/x
  3. Step 3: Cross multiply
    90,380,829.25x = 124,739,178.15 × 55,119,091.51
  4. Step 4: Simplify right side
    90,380,829.25x = 6,875,510,175,332,043
  5. Step 5: Solve for x
    x = 6,875,510,175,332,043/90,380,829.25
  6. Step 6: Final answer
    x = 76,072,660.90

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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.