Home / 30,348,097.58-45,475,607.01-20,620,321.58

Finding the Fourth Proportional to 30,348,097.58, 45,475,607.01 and 20,620,321.58

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Solution

The fourth proportional to 30,348,097.58, 45,475,607.01 and 20,620,321.58 is: 30,898,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348,097.58 : 45,475,607.01 = 20,620,321.58 : x
  2. Step 2: Convert to fraction form
    30,348,097.58/45,475,607.01 = 20,620,321.58/x
  3. Step 3: Cross multiply
    30,348,097.58x = 45,475,607.01 × 20,620,321.58
  4. Step 4: Simplify right side
    30,348,097.58x = 937,721,640,591,902.12
  5. Step 5: Solve for x
    x = 937,721,640,591,902.12/30,348,097.58
  6. Step 6: Final answer
    x = 30,898,860.73

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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.