Home / 90,636,884.28-135,955,201.88-42,088,190.09

Finding the Fourth Proportional to 90,636,884.28, 135,955,201.88 and 42,088,190.09

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Solution

The fourth proportional to 90,636,884.28, 135,955,201.88 and 42,088,190.09 is: 63,132,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,636,884.28 : 135,955,201.88 = 42,088,190.09 : x
  2. Step 2: Convert to fraction form
    90,636,884.28/135,955,201.88 = 42,088,190.09/x
  3. Step 3: Cross multiply
    90,636,884.28x = 135,955,201.88 × 42,088,190.09
  4. Step 4: Simplify right side
    90,636,884.28x = 5,722,108,379,875,210
  5. Step 5: Solve for x
    x = 5,722,108,379,875,210/90,636,884.28
  6. Step 6: Final answer
    x = 63,132,227.30

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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.