Home / 8,428,986.81-12,643,513.02-2,039,228.91

Finding the Fourth Proportional to 8,428,986.81, 12,643,513.02 and 2,039,228.91

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Solution

The fourth proportional to 8,428,986.81, 12,643,513.02 and 2,039,228.91 is: 3,058,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428,986.81 : 12,643,513.02 = 2,039,228.91 : x
  2. Step 2: Convert to fraction form
    8,428,986.81/12,643,513.02 = 2,039,228.91/x
  3. Step 3: Cross multiply
    8,428,986.81x = 12,643,513.02 × 2,039,228.91
  4. Step 4: Simplify right side
    8,428,986.81x = 25,783,017,274,345.41
  5. Step 5: Solve for x
    x = 25,783,017,274,345.41/8,428,986.81
  6. Step 6: Final answer
    x = 3,058,851.30

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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.