Home / 14,558,766.30-21,838,149.45-12,921,140.70

Finding the Fourth Proportional to 14,558,766.30, 21,838,149.45 and 12,921,140.70

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Solution

The fourth proportional to 14,558,766.30, 21,838,149.45 and 12,921,140.70 is: 19,381,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558,766.30 : 21,838,149.45 = 12,921,140.70 : x
  2. Step 2: Convert to fraction form
    14,558,766.30/21,838,149.45 = 12,921,140.70/x
  3. Step 3: Cross multiply
    14,558,766.30x = 21,838,149.45 × 12,921,140.70
  4. Step 4: Simplify right side
    14,558,766.30x = 282,173,801,671,077.56
  5. Step 5: Solve for x
    x = 282,173,801,671,077.56/14,558,766.30
  6. Step 6: Final answer
    x = 19,381,711.05

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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.