Home / 2,137,961.69-2,949,566.35-1,220,241.81

Finding the Fourth Proportional to 2,137,961.69, 2,949,566.35 and 1,220,241.81

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Solution

The fourth proportional to 2,137,961.69, 2,949,566.35 and 1,220,241.81 is: 1,683,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137,961.69 : 2,949,566.35 = 1,220,241.81 : x
  2. Step 2: Convert to fraction form
    2,137,961.69/2,949,566.35 = 1,220,241.81/x
  3. Step 3: Cross multiply
    2,137,961.69x = 2,949,566.35 × 1,220,241.81
  4. Step 4: Simplify right side
    2,137,961.69x = 3,599,184,191,937.32
  5. Step 5: Solve for x
    x = 3,599,184,191,937.32/2,137,961.69
  6. Step 6: Final answer
    x = 1,683,465.24

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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.