Home / 9,980,320.35-13,772,832.44-5,396,630.79

Finding the Fourth Proportional to 9,980,320.35, 13,772,832.44 and 5,396,630.79

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Solution

The fourth proportional to 9,980,320.35, 13,772,832.44 and 5,396,630.79 is: 7,447,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980,320.35 : 13,772,832.44 = 5,396,630.79 : x
  2. Step 2: Convert to fraction form
    9,980,320.35/13,772,832.44 = 5,396,630.79/x
  3. Step 3: Cross multiply
    9,980,320.35x = 13,772,832.44 × 5,396,630.79
  4. Step 4: Simplify right side
    9,980,320.35x = 74,326,891,611,214.83
  5. Step 5: Solve for x
    x = 74,326,891,611,214.83/9,980,320.35
  6. Step 6: Final answer
    x = 7,447,345.28

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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.