Home / 2,138,437.80-2,951,047.89-1,171,547.28

Finding the Fourth Proportional to 2,138,437.80, 2,951,047.89 and 1,171,547.28

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Solution

The fourth proportional to 2,138,437.80, 2,951,047.89 and 1,171,547.28 is: 1,616,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,437.80 : 2,951,047.89 = 1,171,547.28 : x
  2. Step 2: Convert to fraction form
    2,138,437.80/2,951,047.89 = 1,171,547.28/x
  3. Step 3: Cross multiply
    2,138,437.80x = 2,951,047.89 × 1,171,547.28
  4. Step 4: Simplify right side
    2,138,437.80x = 3,457,292,128,679.24
  5. Step 5: Solve for x
    x = 3,457,292,128,679.24/2,138,437.80
  6. Step 6: Final answer
    x = 1,616,737.29

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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.