Home / 199,485,818.40-299,228,727.60-190,982,762.40

Finding the Fourth Proportional to 199,485,818.40, 299,228,727.60 and 190,982,762.40

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Solution

The fourth proportional to 199,485,818.40, 299,228,727.60 and 190,982,762.40 is: 286,474,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,485,818.40 : 299,228,727.60 = 190,982,762.40 : x
  2. Step 2: Convert to fraction form
    199,485,818.40/299,228,727.60 = 190,982,762.40/x
  3. Step 3: Cross multiply
    199,485,818.40x = 299,228,727.60 × 190,982,762.40
  4. Step 4: Simplify right side
    199,485,818.40x = 57,147,528,986,485,128
  5. Step 5: Solve for x
    x = 57,147,528,986,485,128/199,485,818.40
  6. Step 6: Final answer
    x = 286,474,143.60

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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.