Home / 7,152,395.50-9,870,357.12-3,889,186.84

Finding the Fourth Proportional to 7,152,395.50, 9,870,357.12 and 3,889,186.84

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Solution

The fourth proportional to 7,152,395.50, 9,870,357.12 and 3,889,186.84 is: 5,367,105.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152,395.50 : 9,870,357.12 = 3,889,186.84 : x
  2. Step 2: Convert to fraction form
    7,152,395.50/9,870,357.12 = 3,889,186.84/x
  3. Step 3: Cross multiply
    7,152,395.50x = 9,870,357.12 × 3,889,186.84
  4. Step 4: Simplify right side
    7,152,395.50x = 38,387,663,017,204.30
  5. Step 5: Solve for x
    x = 38,387,663,017,204.30/7,152,395.50
  6. Step 6: Final answer
    x = 5,367,105.75

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1.5x scale

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.