Home / 90,723,688.20-136,085,532.30-65,214,520.20

Finding the Fourth Proportional to 90,723,688.20, 136,085,532.30 and 65,214,520.20

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Solution

The fourth proportional to 90,723,688.20, 136,085,532.30 and 65,214,520.20 is: 97,821,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,723,688.20 : 136,085,532.30 = 65,214,520.20 : x
  2. Step 2: Convert to fraction form
    90,723,688.20/136,085,532.30 = 65,214,520.20/x
  3. Step 3: Cross multiply
    90,723,688.20x = 136,085,532.30 × 65,214,520.20
  4. Step 4: Simplify right side
    90,723,688.20x = 8,874,752,695,106,104
  5. Step 5: Solve for x
    x = 8,874,752,695,106,104/90,723,688.20
  6. Step 6: Final answer
    x = 97,821,780.30

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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.