Home / 10,109,845.80-15,164,768.70-7,240,064.40

Finding the Fourth Proportional to 10,109,845.80, 15,164,768.70 and 7,240,064.40

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Solution

The fourth proportional to 10,109,845.80, 15,164,768.70 and 7,240,064.40 is: 10,860,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,845.80 : 15,164,768.70 = 7,240,064.40 : x
  2. Step 2: Convert to fraction form
    10,109,845.80/15,164,768.70 = 7,240,064.40/x
  3. Step 3: Cross multiply
    10,109,845.80x = 15,164,768.70 × 7,240,064.40
  4. Step 4: Simplify right side
    10,109,845.80x = 109,793,901,999,104.28
  5. Step 5: Solve for x
    x = 109,793,901,999,104.28/10,109,845.80
  6. Step 6: Final answer
    x = 10,860,096.60

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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.