Home / 30,485,220.55-45,714,544.80-12,283,366.30

Finding the Fourth Proportional to 30,485,220.55, 45,714,544.80 and 12,283,366.30

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Solution

The fourth proportional to 30,485,220.55, 45,714,544.80 and 12,283,366.30 is: 18,419,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485,220.55 : 45,714,544.80 = 12,283,366.30 : x
  2. Step 2: Convert to fraction form
    30,485,220.55/45,714,544.80 = 12,283,366.30/x
  3. Step 3: Cross multiply
    30,485,220.55x = 45,714,544.80 × 12,283,366.30
  4. Step 4: Simplify right side
    30,485,220.55x = 561,528,499,016,160.25
  5. Step 5: Solve for x
    x = 561,528,499,016,160.25/30,485,220.55
  6. Step 6: Final answer
    x = 18,419,696.13

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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.