Home / 90,434,288.88-135,596,817.86-40,569,979.11

Finding the Fourth Proportional to 90,434,288.88, 135,596,817.86 and 40,569,979.11

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Solution

The fourth proportional to 90,434,288.88, 135,596,817.86 and 40,569,979.11 is: 60,830,467.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,434,288.88 : 135,596,817.86 = 40,569,979.11 : x
  2. Step 2: Convert to fraction form
    90,434,288.88/135,596,817.86 = 40,569,979.11/x
  3. Step 3: Cross multiply
    90,434,288.88x = 135,596,817.86 × 40,569,979.11
  4. Step 4: Simplify right side
    90,434,288.88x = 5,501,160,067,081,840
  5. Step 5: Solve for x
    x = 5,501,160,067,081,840/90,434,288.88
  6. Step 6: Final answer
    x = 60,830,467.46

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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.