Home / 5,428,659.40-8,142,405.90-1,439,571.40

Finding the Fourth Proportional to 5,428,659.40, 8,142,405.90 and 1,439,571.40

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Solution

The fourth proportional to 5,428,659.40, 8,142,405.90 and 1,439,571.40 is: 2,159,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,659.40 : 8,142,405.90 = 1,439,571.40 : x
  2. Step 2: Convert to fraction form
    5,428,659.40/8,142,405.90 = 1,439,571.40/x
  3. Step 3: Cross multiply
    5,428,659.40x = 8,142,405.90 × 1,439,571.40
  4. Step 4: Simplify right side
    5,428,659.40x = 11,721,574,660,831.26
  5. Step 5: Solve for x
    x = 11,721,574,660,831.26/5,428,659.40
  6. Step 6: Final answer
    x = 2,159,202.45

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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.