Home / 5,133,781.36-7,085,011.68-2,928,692.72

Finding the Fourth Proportional to 5,133,781.36, 7,085,011.68 and 2,928,692.72

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Solution

The fourth proportional to 5,133,781.36, 7,085,011.68 and 2,928,692.72 is: 4,041,820.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133,781.36 : 7,085,011.68 = 2,928,692.72 : x
  2. Step 2: Convert to fraction form
    5,133,781.36/7,085,011.68 = 2,928,692.72/x
  3. Step 3: Cross multiply
    5,133,781.36x = 7,085,011.68 × 2,928,692.72
  4. Step 4: Simplify right side
    5,133,781.36x = 20,749,822,128,330.97
  5. Step 5: Solve for x
    x = 20,749,822,128,330.97/5,133,781.36
  6. Step 6: Final answer
    x = 4,041,820.38

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1.5x scale

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.