Home / 11,678,975.20-17,506,539.60-7,892,840.80

Finding the Fourth Proportional to 11,678,975.20, 17,506,539.60 and 7,892,840.80

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Solution

The fourth proportional to 11,678,975.20, 17,506,539.60 and 7,892,840.80 is: 11,831,203.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678,975.20 : 17,506,539.60 = 7,892,840.80 : x
  2. Step 2: Convert to fraction form
    11,678,975.20/17,506,539.60 = 7,892,840.80/x
  3. Step 3: Cross multiply
    11,678,975.20x = 17,506,539.60 × 7,892,840.80
  4. Step 4: Simplify right side
    11,678,975.20x = 138,176,330,021,695.69
  5. Step 5: Solve for x
    x = 138,176,330,021,695.69/11,678,975.20
  6. Step 6: Final answer
    x = 11,831,203.31

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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.