Home / 7,152,382.74-9,870,339.54-3,889,174.08

Finding the Fourth Proportional to 7,152,382.74, 9,870,339.54 and 3,889,174.08

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Solution

The fourth proportional to 7,152,382.74, 9,870,339.54 and 3,889,174.08 is: 5,367,088.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152,382.74 : 9,870,339.54 = 3,889,174.08 : x
  2. Step 2: Convert to fraction form
    7,152,382.74/9,870,339.54 = 3,889,174.08/x
  3. Step 3: Cross multiply
    7,152,382.74x = 9,870,339.54 × 3,889,174.08
  4. Step 4: Simplify right side
    7,152,382.74x = 38,387,468,699,767.12
  5. Step 5: Solve for x
    x = 38,387,468,699,767.12/7,152,382.74
  6. Step 6: Final answer
    x = 5,367,088.16

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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.