Home / 14,201,999.20-21,316,995.60-7,021,640.80

Finding the Fourth Proportional to 14,201,999.20, 21,316,995.60 and 7,021,640.80

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Solution

The fourth proportional to 14,201,999.20, 21,316,995.60 and 7,021,640.80 is: 10,539,381.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,201,999.20 : 21,316,995.60 = 7,021,640.80 : x
  2. Step 2: Convert to fraction form
    14,201,999.20/21,316,995.60 = 7,021,640.80/x
  3. Step 3: Cross multiply
    14,201,999.20x = 21,316,995.60 × 7,021,640.80
  4. Step 4: Simplify right side
    14,201,999.20x = 149,680,286,038,380.50
  5. Step 5: Solve for x
    x = 149,680,286,038,380.50/14,201,999.20
  6. Step 6: Final answer
    x = 10,539,381.39

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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.