Home / 90,820,005.40-125,435,868.06-66,150,101.08

Finding the Fourth Proportional to 90,820,005.40, 125,435,868.06 and 66,150,101.08

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Solution

The fourth proportional to 90,820,005.40, 125,435,868.06 and 66,150,101.08 is: 91,363,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,820,005.40 : 125,435,868.06 = 66,150,101.08 : x
  2. Step 2: Convert to fraction form
    90,820,005.40/125,435,868.06 = 66,150,101.08/x
  3. Step 3: Cross multiply
    90,820,005.40x = 125,435,868.06 × 66,150,101.08
  4. Step 4: Simplify right side
    90,820,005.40x = 8,297,595,351,226,543
  5. Step 5: Solve for x
    x = 8,297,595,351,226,543/90,820,005.40
  6. Step 6: Final answer
    x = 91,363,079.25

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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.