Home / 12,290,411.90-18,435,617.85-3,191,762.90

Finding the Fourth Proportional to 12,290,411.90, 18,435,617.85 and 3,191,762.90

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Solution

The fourth proportional to 12,290,411.90, 18,435,617.85 and 3,191,762.90 is: 4,787,644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,411.90 : 18,435,617.85 = 3,191,762.90 : x
  2. Step 2: Convert to fraction form
    12,290,411.90/18,435,617.85 = 3,191,762.90/x
  3. Step 3: Cross multiply
    12,290,411.90x = 18,435,617.85 × 3,191,762.90
  4. Step 4: Simplify right side
    12,290,411.90x = 58,842,121,092,207.77
  5. Step 5: Solve for x
    x = 58,842,121,092,207.77/12,290,411.90
  6. Step 6: Final answer
    x = 4,787,644.35

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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.