Home / 9,917,990.48-13,688,208.08-5,508,706.88

Finding the Fourth Proportional to 9,917,990.48, 13,688,208.08 and 5,508,706.88

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Solution

The fourth proportional to 9,917,990.48, 13,688,208.08 and 5,508,706.88 is: 7,602,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917,990.48 : 13,688,208.08 = 5,508,706.88 : x
  2. Step 2: Convert to fraction form
    9,917,990.48/13,688,208.08 = 5,508,706.88/x
  3. Step 3: Cross multiply
    9,917,990.48x = 13,688,208.08 × 5,508,706.88
  4. Step 4: Simplify right side
    9,917,990.48x = 75,404,325,929,183.02
  5. Step 5: Solve for x
    x = 75,404,325,929,183.02/9,917,990.48
  6. Step 6: Final answer
    x = 7,602,782.65

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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.