Home / 90,436,857.54-124,800,190.65-51,282,209.22

Finding the Fourth Proportional to 90,436,857.54, 124,800,190.65 and 51,282,209.22

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Solution

The fourth proportional to 90,436,857.54, 124,800,190.65 and 51,282,209.22 is: 70,767,933.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,436,857.54 : 124,800,190.65 = 51,282,209.22 : x
  2. Step 2: Convert to fraction form
    90,436,857.54/124,800,190.65 = 51,282,209.22/x
  3. Step 3: Cross multiply
    90,436,857.54x = 124,800,190.65 × 51,282,209.22
  4. Step 4: Simplify right side
    90,436,857.54x = 6,400,029,487,609,188
  5. Step 5: Solve for x
    x = 6,400,029,487,609,188/90,436,857.54
  6. Step 6: Final answer
    x = 70,767,933.14

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1.5x scale

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.