Home / 2,159,961.39-2,980,357.20-1,395,572.22

Finding the Fourth Proportional to 2,159,961.39, 2,980,357.20 and 1,395,572.22

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Solution

The fourth proportional to 2,159,961.39, 2,980,357.20 and 1,395,572.22 is: 1,925,637.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,961.39 : 2,980,357.20 = 1,395,572.22 : x
  2. Step 2: Convert to fraction form
    2,159,961.39/2,980,357.20 = 1,395,572.22/x
  3. Step 3: Cross multiply
    2,159,961.39x = 2,980,357.20 × 1,395,572.22
  4. Step 4: Simplify right side
    2,159,961.39x = 4,159,303,713,996.98
  5. Step 5: Solve for x
    x = 4,159,303,713,996.98/2,159,961.39
  6. Step 6: Final answer
    x = 1,925,637.99

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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.