Home / 2,168,822.40-2,991,088.80-1,626,178.56

Finding the Fourth Proportional to 2,168,822.40, 2,991,088.80 and 1,626,178.56

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Solution

The fourth proportional to 2,168,822.40, 2,991,088.80 and 1,626,178.56 is: 2,242,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,822.40 : 2,991,088.80 = 1,626,178.56 : x
  2. Step 2: Convert to fraction form
    2,168,822.40/2,991,088.80 = 1,626,178.56/x
  3. Step 3: Cross multiply
    2,168,822.40x = 2,991,088.80 × 1,626,178.56
  4. Step 4: Simplify right side
    2,168,822.40x = 4,864,044,477,616.13
  5. Step 5: Solve for x
    x = 4,864,044,477,616.13/2,168,822.40
  6. Step 6: Final answer
    x = 2,242,712.21

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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.