Home / 12,646,620.08-18,972,948-4,126,972.40

Finding the Fourth Proportional to 12,646,620.08, 18,972,948 and 4,126,972.40

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Solution

The fourth proportional to 12,646,620.08, 18,972,948 and 4,126,972.40 is: 6,191,443.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646,620.08 : 18,972,948 = 4,126,972.40 : x
  2. Step 2: Convert to fraction form
    12,646,620.08/18,972,948 = 4,126,972.40/x
  3. Step 3: Cross multiply
    12,646,620.08x = 18,972,948 × 4,126,972.40
  4. Step 4: Simplify right side
    12,646,620.08x = 78,300,832,742,635.20
  5. Step 5: Solve for x
    x = 78,300,832,742,635.20/12,646,620.08
  6. Step 6: Final answer
    x = 6,191,443.42

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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.