Home / 12,570,483.90-18,868,919.64-11,140,317.12

Finding the Fourth Proportional to 12,570,483.90, 18,868,919.64 and 11,140,317.12

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Solution

The fourth proportional to 12,570,483.90, 18,868,919.64 and 11,140,317.12 is: 16,722,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570,483.90 : 18,868,919.64 = 11,140,317.12 : x
  2. Step 2: Convert to fraction form
    12,570,483.90/18,868,919.64 = 11,140,317.12/x
  3. Step 3: Cross multiply
    12,570,483.90x = 18,868,919.64 × 11,140,317.12
  4. Step 4: Simplify right side
    12,570,483.90x = 210,205,748,501,396.22
  5. Step 5: Solve for x
    x = 210,205,748,501,396.22/12,570,483.90
  6. Step 6: Final answer
    x = 16,722,168.39

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1.5x scale

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.