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Finding the Fourth Proportional to 14,373,312.80, 21,570,466.80 and 10,121,784.80

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Solution

The fourth proportional to 14,373,312.80, 21,570,466.80 and 10,121,784.80 is: 15,190,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,373,312.80 : 21,570,466.80 = 10,121,784.80 : x
  2. Step 2: Convert to fraction form
    14,373,312.80/21,570,466.80 = 10,121,784.80/x
  3. Step 3: Cross multiply
    14,373,312.80x = 21,570,466.80 × 10,121,784.80
  4. Step 4: Simplify right side
    14,373,312.80x = 218,331,622,985,144.66
  5. Step 5: Solve for x
    x = 218,331,622,985,144.66/14,373,312.80
  6. Step 6: Final answer
    x = 15,190,069.68

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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.