Home / 25,621,820.30-38,386,074.45-12,128,905.10

Finding the Fourth Proportional to 25,621,820.30, 38,386,074.45 and 12,128,905.10

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Solution

The fourth proportional to 25,621,820.30, 38,386,074.45 and 12,128,905.10 is: 18,171,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621,820.30 : 38,386,074.45 = 12,128,905.10 : x
  2. Step 2: Convert to fraction form
    25,621,820.30/38,386,074.45 = 12,128,905.10/x
  3. Step 3: Cross multiply
    25,621,820.30x = 38,386,074.45 × 12,128,905.10
  4. Step 4: Simplify right side
    25,621,820.30x = 465,581,054,165,584.69
  5. Step 5: Solve for x
    x = 465,581,054,165,584.69/25,621,820.30
  6. Step 6: Final answer
    x = 18,171,271.55

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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.