Home / 7,152,871.86-9,870,570.09-3,889,683.18

Finding the Fourth Proportional to 7,152,871.86, 9,870,570.09 and 3,889,683.18

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Solution

The fourth proportional to 7,152,871.86, 9,870,570.09 and 3,889,683.18 is: 5,367,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152,871.86 : 9,870,570.09 = 3,889,683.18 : x
  2. Step 2: Convert to fraction form
    7,152,871.86/9,870,570.09 = 3,889,683.18/x
  3. Step 3: Cross multiply
    7,152,871.86x = 9,870,570.09 × 3,889,683.18
  4. Step 4: Simplify right side
    7,152,871.86x = 38,393,390,456,084.09
  5. Step 5: Solve for x
    x = 38,393,390,456,084.09/7,152,871.86
  6. Step 6: Final answer
    x = 5,367,549.04

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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.