Home / 12,871,721.60-19,314,674.40-7,826,575.04

Finding the Fourth Proportional to 12,871,721.60, 19,314,674.40 and 7,826,575.04

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Solution

The fourth proportional to 12,871,721.60, 19,314,674.40 and 7,826,575.04 is: 11,744,174.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871,721.60 : 19,314,674.40 = 7,826,575.04 : x
  2. Step 2: Convert to fraction form
    12,871,721.60/19,314,674.40 = 7,826,575.04/x
  3. Step 3: Cross multiply
    12,871,721.60x = 19,314,674.40 × 7,826,575.04
  4. Step 4: Simplify right side
    12,871,721.60x = 151,167,748,564,766.97
  5. Step 5: Solve for x
    x = 151,167,748,564,766.97/12,871,721.60
  6. Step 6: Final answer
    x = 11,744,174.81

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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.