Home / 11,569,657.12-15,972,485.60-7,904,085.28

Finding the Fourth Proportional to 11,569,657.12, 15,972,485.60 and 7,904,085.28

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Solution

The fourth proportional to 11,569,657.12, 15,972,485.60 and 7,904,085.28 is: 10,911,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,569,657.12 : 15,972,485.60 = 7,904,085.28 : x
  2. Step 2: Convert to fraction form
    11,569,657.12/15,972,485.60 = 7,904,085.28/x
  3. Step 3: Cross multiply
    11,569,657.12x = 15,972,485.60 × 7,904,085.28
  4. Step 4: Simplify right side
    11,569,657.12x = 126,247,888,315,971.97
  5. Step 5: Solve for x
    x = 126,247,888,315,971.97/11,569,657.12
  6. Step 6: Final answer
    x = 10,911,981.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.