Home / 1,900,131.60-2,851,810.20-779,005.20

Finding the Fourth Proportional to 1,900,131.60, 2,851,810.20 and 779,005.20

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Solution

The fourth proportional to 1,900,131.60, 2,851,810.20 and 779,005.20 is: 1,169,169.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900,131.60 : 2,851,810.20 = 779,005.20 : x
  2. Step 2: Convert to fraction form
    1,900,131.60/2,851,810.20 = 779,005.20/x
  3. Step 3: Cross multiply
    1,900,131.60x = 2,851,810.20 × 779,005.20
  4. Step 4: Simplify right side
    1,900,131.60x = 2,221,574,975,213.04
  5. Step 5: Solve for x
    x = 2,221,574,975,213.04/1,900,131.60
  6. Step 6: Final answer
    x = 1,169,169.01

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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.