Home / 90,991,276.50-136,486,914.75-30,407,002.50

Finding the Fourth Proportional to 90,991,276.50, 136,486,914.75 and 30,407,002.50

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Solution

The fourth proportional to 90,991,276.50, 136,486,914.75 and 30,407,002.50 is: 45,610,503.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991,276.50 : 136,486,914.75 = 30,407,002.50 : x
  2. Step 2: Convert to fraction form
    90,991,276.50/136,486,914.75 = 30,407,002.50/x
  3. Step 3: Cross multiply
    90,991,276.50x = 136,486,914.75 × 30,407,002.50
  4. Step 4: Simplify right side
    90,991,276.50x = 4,150,157,958,020,537
  5. Step 5: Solve for x
    x = 4,150,157,958,020,537/90,991,276.50
  6. Step 6: Final answer
    x = 45,610,503.75

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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.