Home / 12,820,007.10-19,230,010.65-4,298,288.70

Finding the Fourth Proportional to 12,820,007.10, 19,230,010.65 and 4,298,288.70

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Solution

The fourth proportional to 12,820,007.10, 19,230,010.65 and 4,298,288.70 is: 6,447,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,007.10 : 19,230,010.65 = 4,298,288.70 : x
  2. Step 2: Convert to fraction form
    12,820,007.10/19,230,010.65 = 4,298,288.70/x
  3. Step 3: Cross multiply
    12,820,007.10x = 19,230,010.65 × 4,298,288.70
  4. Step 4: Simplify right side
    12,820,007.10x = 82,656,137,477,774.66
  5. Step 5: Solve for x
    x = 82,656,137,477,774.66/12,820,007.10
  6. Step 6: Final answer
    x = 6,447,433.05

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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.