Home / 19,483,905.81-26,888,228.73-12,620,334.36

Finding the Fourth Proportional to 19,483,905.81, 26,888,228.73 and 12,620,334.36

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Solution

The fourth proportional to 19,483,905.81, 26,888,228.73 and 12,620,334.36 is: 17,416,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483,905.81 : 26,888,228.73 = 12,620,334.36 : x
  2. Step 2: Convert to fraction form
    19,483,905.81/26,888,228.73 = 12,620,334.36/x
  3. Step 3: Cross multiply
    19,483,905.81x = 26,888,228.73 × 12,620,334.36
  4. Step 4: Simplify right side
    19,483,905.81x = 339,338,436,920,758.12
  5. Step 5: Solve for x
    x = 339,338,436,920,758.12/19,483,905.81
  6. Step 6: Final answer
    x = 17,416,345.58

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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.