Home / 8,199,290.60-12,298,935.90-5,220,679.40

Finding the Fourth Proportional to 8,199,290.60, 12,298,935.90 and 5,220,679.40

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Solution

The fourth proportional to 8,199,290.60, 12,298,935.90 and 5,220,679.40 is: 7,831,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199,290.60 : 12,298,935.90 = 5,220,679.40 : x
  2. Step 2: Convert to fraction form
    8,199,290.60/12,298,935.90 = 5,220,679.40/x
  3. Step 3: Cross multiply
    8,199,290.60x = 12,298,935.90 × 5,220,679.40
  4. Step 4: Simplify right side
    8,199,290.60x = 64,208,801,295,050.47
  5. Step 5: Solve for x
    x = 64,208,801,295,050.47/8,199,290.60
  6. Step 6: Final answer
    x = 7,831,019.10

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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.