Home / 90,587,961.97-125,014,926.25-51,433,381.69

Finding the Fourth Proportional to 90,587,961.97, 125,014,926.25 and 51,433,381.69

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Solution

The fourth proportional to 90,587,961.97, 125,014,926.25 and 51,433,381.69 is: 70,980,075.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,587,961.97 : 125,014,926.25 = 51,433,381.69 : x
  2. Step 2: Convert to fraction form
    90,587,961.97/125,014,926.25 = 51,433,381.69/x
  3. Step 3: Cross multiply
    90,587,961.97x = 125,014,926.25 × 51,433,381.69
  4. Step 4: Simplify right side
    90,587,961.97x = 6,429,940,418,515,205
  5. Step 5: Solve for x
    x = 6,429,940,418,515,205/90,587,961.97
  6. Step 6: Final answer
    x = 70,980,075.93

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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.