Home / 7,152,379.74-9,870,335.40-3,889,171.08

Finding the Fourth Proportional to 7,152,379.74, 9,870,335.40 and 3,889,171.08

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Solution

The fourth proportional to 7,152,379.74, 9,870,335.40 and 3,889,171.08 is: 5,367,084.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152,379.74 : 9,870,335.40 = 3,889,171.08 : x
  2. Step 2: Convert to fraction form
    7,152,379.74/9,870,335.40 = 3,889,171.08/x
  3. Step 3: Cross multiply
    7,152,379.74x = 9,870,335.40 × 3,889,171.08
  4. Step 4: Simplify right side
    7,152,379.74x = 38,387,422,987,580.23
  5. Step 5: Solve for x
    x = 38,387,422,987,580.23/7,152,379.74
  6. Step 6: Final answer
    x = 5,367,084.02

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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.