Home / 8,638,448-11,921,059.20-5,017,009.28

Finding the Fourth Proportional to 8,638,448, 11,921,059.20 and 5,017,009.28

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Solution

The fourth proportional to 8,638,448, 11,921,059.20 and 5,017,009.28 is: 6,923,473.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,448 : 11,921,059.20 = 5,017,009.28 : x
  2. Step 2: Convert to fraction form
    8,638,448/11,921,059.20 = 5,017,009.28/x
  3. Step 3: Cross multiply
    8,638,448x = 11,921,059.20 × 5,017,009.28
  4. Step 4: Simplify right side
    8,638,448x = 59,808,064,633,829.38
  5. Step 5: Solve for x
    x = 59,808,064,633,829.38/8,638,448
  6. Step 6: Final answer
    x = 6,923,473.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.