Home / 90,991,281.50-136,486,922.26-30,407,007.50

Finding the Fourth Proportional to 90,991,281.50, 136,486,922.26 and 30,407,007.50

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Solution

The fourth proportional to 90,991,281.50, 136,486,922.26 and 30,407,007.50 is: 45,610,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991,281.50 : 136,486,922.26 = 30,407,007.50 : x
  2. Step 2: Convert to fraction form
    90,991,281.50/136,486,922.26 = 30,407,007.50/x
  3. Step 3: Cross multiply
    90,991,281.50x = 136,486,922.26 × 30,407,007.50
  4. Step 4: Simplify right side
    90,991,281.50x = 4,150,158,868,811,736.50
  5. Step 5: Solve for x
    x = 4,150,158,868,811,736.50/90,991,281.50
  6. Step 6: Final answer
    x = 45,610,511.25

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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.