Home / 28,499,246.80-42,748,870.20-8,305,147.60

Finding the Fourth Proportional to 28,499,246.80, 42,748,870.20 and 8,305,147.60

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Solution

The fourth proportional to 28,499,246.80, 42,748,870.20 and 8,305,147.60 is: 12,457,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499,246.80 : 42,748,870.20 = 8,305,147.60 : x
  2. Step 2: Convert to fraction form
    28,499,246.80/42,748,870.20 = 8,305,147.60/x
  3. Step 3: Cross multiply
    28,499,246.80x = 42,748,870.20 × 8,305,147.60
  4. Step 4: Simplify right side
    28,499,246.80x = 355,035,676,744,241.50
  5. Step 5: Solve for x
    x = 355,035,676,744,241.50/28,499,246.80
  6. Step 6: Final answer
    x = 12,457,721.40

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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.