Home / 90,887,310.40-136,331,656.80-30,302,939.20

Finding the Fourth Proportional to 90,887,310.40, 136,331,656.80 and 30,302,939.20

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Solution

The fourth proportional to 90,887,310.40, 136,331,656.80 and 30,302,939.20 is: 45,454,639.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,887,310.40 : 136,331,656.80 = 30,302,939.20 : x
  2. Step 2: Convert to fraction form
    90,887,310.40/136,331,656.80 = 30,302,939.20/x
  3. Step 3: Cross multiply
    90,887,310.40x = 136,331,656.80 × 30,302,939.20
  4. Step 4: Simplify right side
    90,887,310.40x = 4,131,249,907,045,667
  5. Step 5: Solve for x
    x = 4,131,249,907,045,667/90,887,310.40
  6. Step 6: Final answer
    x = 45,454,639.25

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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.