Home / 2,007,421.20-3,011,131.80-1,157,115.60

Finding the Fourth Proportional to 2,007,421.20, 3,011,131.80 and 1,157,115.60

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Solution

The fourth proportional to 2,007,421.20, 3,011,131.80 and 1,157,115.60 is: 1,735,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007,421.20 : 3,011,131.80 = 1,157,115.60 : x
  2. Step 2: Convert to fraction form
    2,007,421.20/3,011,131.80 = 1,157,115.60/x
  3. Step 3: Cross multiply
    2,007,421.20x = 3,011,131.80 × 1,157,115.60
  4. Step 4: Simplify right side
    2,007,421.20x = 3,484,227,579,436.08
  5. Step 5: Solve for x
    x = 3,484,227,579,436.08/2,007,421.20
  6. Step 6: Final answer
    x = 1,735,673.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.