Home / 28,232,804.56-38,939,305.34-20,421,618.30

Finding the Fourth Proportional to 28,232,804.56, 38,939,305.34 and 20,421,618.30

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Solution

The fourth proportional to 28,232,804.56, 38,939,305.34 and 20,421,618.30 is: 28,165,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232,804.56 : 38,939,305.34 = 20,421,618.30 : x
  2. Step 2: Convert to fraction form
    28,232,804.56/38,939,305.34 = 20,421,618.30/x
  3. Step 3: Cross multiply
    28,232,804.56x = 38,939,305.34 × 20,421,618.30
  4. Step 4: Simplify right side
    28,232,804.56x = 795,203,630,520,631.88
  5. Step 5: Solve for x
    x = 795,203,630,520,631.88/28,232,804.56
  6. Step 6: Final answer
    x = 28,165,945.36

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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.