Home / 90,909,482.09-125,417,945.50-67,124,112.95

Finding the Fourth Proportional to 90,909,482.09, 125,417,945.50 and 67,124,112.95

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Solution

The fourth proportional to 90,909,482.09, 125,417,945.50 and 67,124,112.95 is: 92,603,853.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,909,482.09 : 125,417,945.50 = 67,124,112.95 : x
  2. Step 2: Convert to fraction form
    90,909,482.09/125,417,945.50 = 67,124,112.95/x
  3. Step 3: Cross multiply
    90,909,482.09x = 125,417,945.50 × 67,124,112.95
  4. Step 4: Simplify right side
    90,909,482.09x = 8,418,568,339,844,679
  5. Step 5: Solve for x
    x = 8,418,568,339,844,679/90,909,482.09
  6. Step 6: Final answer
    x = 92,603,853.27

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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.