Home / 90,310,290.30-124,631,619.82-50,618,548.08

Finding the Fourth Proportional to 90,310,290.30, 124,631,619.82 and 50,618,548.08

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Solution

The fourth proportional to 90,310,290.30, 124,631,619.82 and 50,618,548.08 is: 69,855,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,310,290.30 : 124,631,619.82 = 50,618,548.08 : x
  2. Step 2: Convert to fraction form
    90,310,290.30/124,631,619.82 = 50,618,548.08/x
  3. Step 3: Cross multiply
    90,310,290.30x = 124,631,619.82 × 50,618,548.08
  4. Step 4: Simplify right side
    90,310,290.30x = 6,308,671,640,146,950
  5. Step 5: Solve for x
    x = 6,308,671,640,146,950/90,310,290.30
  6. Step 6: Final answer
    x = 69,855,512.80

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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.