Home / 28,364,824.30-42,541,331.55-12,191,303.20

Finding the Fourth Proportional to 28,364,824.30, 42,541,331.55 and 12,191,303.20

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Solution

The fourth proportional to 28,364,824.30, 42,541,331.55 and 12,191,303.20 is: 18,284,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364,824.30 : 42,541,331.55 = 12,191,303.20 : x
  2. Step 2: Convert to fraction form
    28,364,824.30/42,541,331.55 = 12,191,303.20/x
  3. Step 3: Cross multiply
    28,364,824.30x = 42,541,331.55 × 12,191,303.20
  4. Step 4: Simplify right side
    28,364,824.30x = 518,634,271,457,775.88
  5. Step 5: Solve for x
    x = 518,634,271,457,775.88/28,364,824.30
  6. Step 6: Final answer
    x = 18,284,416.85

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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.