Home / 90,813,799.85-125,327,118.65-51,134,975.51

Finding the Fourth Proportional to 90,813,799.85, 125,327,118.65 and 51,134,975.51

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Solution

The fourth proportional to 90,813,799.85, 125,327,118.65 and 51,134,975.51 is: 70,568,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,813,799.85 : 125,327,118.65 = 51,134,975.51 : x
  2. Step 2: Convert to fraction form
    90,813,799.85/125,327,118.65 = 51,134,975.51/x
  3. Step 3: Cross multiply
    90,813,799.85x = 125,327,118.65 × 51,134,975.51
  4. Step 4: Simplify right side
    90,813,799.85x = 6,408,599,142,024,304
  5. Step 5: Solve for x
    x = 6,408,599,142,024,304/90,813,799.85
  6. Step 6: Final answer
    x = 70,568,560.65

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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.