Home / 3,678,178.72-5,075,125.52-2,149,990.24

Finding the Fourth Proportional to 3,678,178.72, 5,075,125.52 and 2,149,990.24

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Solution

The fourth proportional to 3,678,178.72, 5,075,125.52 and 2,149,990.24 is: 2,966,541.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678,178.72 : 5,075,125.52 = 2,149,990.24 : x
  2. Step 2: Convert to fraction form
    3,678,178.72/5,075,125.52 = 2,149,990.24/x
  3. Step 3: Cross multiply
    3,678,178.72x = 5,075,125.52 × 2,149,990.24
  4. Step 4: Simplify right side
    3,678,178.72x = 10,911,470,334,774.93
  5. Step 5: Solve for x
    x = 10,911,470,334,774.93/3,678,178.72
  6. Step 6: Final answer
    x = 2,966,541.64

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Double scale
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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.