Home / 12,579,485.70-18,869,228.55-12,366,909.30

Finding the Fourth Proportional to 12,579,485.70, 18,869,228.55 and 12,366,909.30

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Solution

The fourth proportional to 12,579,485.70, 18,869,228.55 and 12,366,909.30 is: 18,550,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579,485.70 : 18,869,228.55 = 12,366,909.30 : x
  2. Step 2: Convert to fraction form
    12,579,485.70/18,869,228.55 = 12,366,909.30/x
  3. Step 3: Cross multiply
    12,579,485.70x = 18,869,228.55 × 12,366,909.30
  4. Step 4: Simplify right side
    12,579,485.70x = 233,354,038,038,820.53
  5. Step 5: Solve for x
    x = 233,354,038,038,820.53/12,579,485.70
  6. Step 6: Final answer
    x = 18,550,363.95

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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.