Home / 2,911,982.21-4,018,548.90-1,689,011.81

Finding the Fourth Proportional to 2,911,982.21, 4,018,548.90 and 1,689,011.81

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Solution

The fourth proportional to 2,911,982.21, 4,018,548.90 and 1,689,011.81 is: 2,330,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911,982.21 : 4,018,548.90 = 1,689,011.81 : x
  2. Step 2: Convert to fraction form
    2,911,982.21/4,018,548.90 = 1,689,011.81/x
  3. Step 3: Cross multiply
    2,911,982.21x = 4,018,548.90 × 1,689,011.81
  4. Step 4: Simplify right side
    2,911,982.21x = 6,787,376,552,473.12
  5. Step 5: Solve for x
    x = 6,787,376,552,473.12/2,911,982.21
  6. Step 6: Final answer
    x = 2,330,844.10

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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.