Home / 14,558,772.80-21,838,159.20-12,921,147.20

Finding the Fourth Proportional to 14,558,772.80, 21,838,159.20 and 12,921,147.20

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Solution

The fourth proportional to 14,558,772.80, 21,838,159.20 and 12,921,147.20 is: 19,381,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558,772.80 : 21,838,159.20 = 12,921,147.20 : x
  2. Step 2: Convert to fraction form
    14,558,772.80/21,838,159.20 = 12,921,147.20/x
  3. Step 3: Cross multiply
    14,558,772.80x = 21,838,159.20 × 12,921,147.20
  4. Step 4: Simplify right side
    14,558,772.80x = 282,174,069,600,234.19
  5. Step 5: Solve for x
    x = 282,174,069,600,234.19/14,558,772.80
  6. Step 6: Final answer
    x = 19,381,720.80

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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.