Home / 30,571,231.64-42,172,219.96-18,172,506.02

Finding the Fourth Proportional to 30,571,231.64, 42,172,219.96 and 18,172,506.02

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Solution

The fourth proportional to 30,571,231.64, 42,172,219.96 and 18,172,506.02 is: 25,068,500.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571,231.64 : 42,172,219.96 = 18,172,506.02 : x
  2. Step 2: Convert to fraction form
    30,571,231.64/42,172,219.96 = 18,172,506.02/x
  3. Step 3: Cross multiply
    30,571,231.64x = 42,172,219.96 × 18,172,506.02
  4. Step 4: Simplify right side
    30,571,231.64x = 766,374,920,843,571.88
  5. Step 5: Solve for x
    x = 766,374,920,843,571.88/30,571,231.64
  6. Step 6: Final answer
    x = 25,068,500.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.