Home / 90,153,313.80-135,229,970.70-21,996,005.55

Finding the Fourth Proportional to 90,153,313.80, 135,229,970.70 and 21,996,005.55

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Solution

The fourth proportional to 90,153,313.80, 135,229,970.70 and 21,996,005.55 is: 32,994,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,153,313.80 : 135,229,970.70 = 21,996,005.55 : x
  2. Step 2: Convert to fraction form
    90,153,313.80/135,229,970.70 = 21,996,005.55/x
  3. Step 3: Cross multiply
    90,153,313.80x = 135,229,970.70 × 21,996,005.55
  4. Step 4: Simplify right side
    90,153,313.80x = 2,974,519,186,043,537
  5. Step 5: Solve for x
    x = 2,974,519,186,043,537/90,153,313.80
  6. Step 6: Final answer
    x = 32,994,008.33

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.