Home / 2,115,064.41-2,918,792.53-1,209,646.41

Finding the Fourth Proportional to 2,115,064.41, 2,918,792.53 and 1,209,646.41

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Solution

The fourth proportional to 2,115,064.41, 2,918,792.53 and 1,209,646.41 is: 1,669,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,064.41 : 2,918,792.53 = 1,209,646.41 : x
  2. Step 2: Convert to fraction form
    2,115,064.41/2,918,792.53 = 1,209,646.41/x
  3. Step 3: Cross multiply
    2,115,064.41x = 2,918,792.53 × 1,209,646.41
  4. Step 4: Simplify right side
    2,115,064.41x = 3,530,706,889,211.64
  5. Step 5: Solve for x
    x = 3,530,706,889,211.64/2,115,064.41
  6. Step 6: Final answer
    x = 1,669,314.13

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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.