Home / 20,734,601.90-31,101,902.86-13,166,998.70

Finding the Fourth Proportional to 20,734,601.90, 31,101,902.86 and 13,166,998.70

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Solution

The fourth proportional to 20,734,601.90, 31,101,902.86 and 13,166,998.70 is: 19,750,498.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,601.90 : 31,101,902.86 = 13,166,998.70 : x
  2. Step 2: Convert to fraction form
    20,734,601.90/31,101,902.86 = 13,166,998.70/x
  3. Step 3: Cross multiply
    20,734,601.90x = 31,101,902.86 × 13,166,998.70
  4. Step 4: Simplify right side
    20,734,601.90x = 409,518,714,525,146.25
  5. Step 5: Solve for x
    x = 409,518,714,525,146.25/20,734,601.90
  6. Step 6: Final answer
    x = 19,750,498.06

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1.5x scale

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.