Home / 19,245,138.30-28,875,483.45-8,464,491.90

Finding the Fourth Proportional to 19,245,138.30, 28,875,483.45 and 8,464,491.90

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Solution

The fourth proportional to 19,245,138.30, 28,875,483.45 and 8,464,491.90 is: 12,700,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245,138.30 : 28,875,483.45 = 8,464,491.90 : x
  2. Step 2: Convert to fraction form
    19,245,138.30/28,875,483.45 = 8,464,491.90/x
  3. Step 3: Cross multiply
    19,245,138.30x = 28,875,483.45 × 8,464,491.90
  4. Step 4: Simplify right side
    19,245,138.30x = 244,416,295,771,109.06
  5. Step 5: Solve for x
    x = 244,416,295,771,109.06/19,245,138.30
  6. Step 6: Final answer
    x = 12,700,157.93

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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.