Home / 2,085,805.80-3,128,708.70-666,005.40

Finding the Fourth Proportional to 2,085,805.80, 3,128,708.70 and 666,005.40

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Solution

The fourth proportional to 2,085,805.80, 3,128,708.70 and 666,005.40 is: 999,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,805.80 : 3,128,708.70 = 666,005.40 : x
  2. Step 2: Convert to fraction form
    2,085,805.80/3,128,708.70 = 666,005.40/x
  3. Step 3: Cross multiply
    2,085,805.80x = 3,128,708.70 × 666,005.40
  4. Step 4: Simplify right side
    2,085,805.80x = 2,083,736,889,226.98
  5. Step 5: Solve for x
    x = 2,083,736,889,226.98/2,085,805.80
  6. Step 6: Final answer
    x = 999,008.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.