Home / 20,772,945-28,666,135.98-11,605,656.60

Finding the Fourth Proportional to 20,772,945, 28,666,135.98 and 11,605,656.60

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Solution

The fourth proportional to 20,772,945, 28,666,135.98 and 11,605,656.60 is: 16,015,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772,945 : 28,666,135.98 = 11,605,656.60 : x
  2. Step 2: Convert to fraction form
    20,772,945/28,666,135.98 = 11,605,656.60/x
  3. Step 3: Cross multiply
    20,772,945x = 28,666,135.98 × 11,605,656.60
  4. Step 4: Simplify right side
    20,772,945x = 332,689,330,232,784.44
  5. Step 5: Solve for x
    x = 332,689,330,232,784.44/20,772,945
  6. Step 6: Final answer
    x = 16,015,511.05

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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.