Home / 19,790,136.96-27,318,749.76-12,920,507.52

Finding the Fourth Proportional to 19,790,136.96, 27,318,749.76 and 12,920,507.52

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Solution

The fourth proportional to 19,790,136.96, 27,318,749.76 and 12,920,507.52 is: 17,835,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790,136.96 : 27,318,749.76 = 12,920,507.52 : x
  2. Step 2: Convert to fraction form
    19,790,136.96/27,318,749.76 = 12,920,507.52/x
  3. Step 3: Cross multiply
    19,790,136.96x = 27,318,749.76 × 12,920,507.52
  4. Step 4: Simplify right side
    19,790,136.96x = 352,972,111,711,078.19
  5. Step 5: Solve for x
    x = 352,972,111,711,078.19/19,790,136.96
  6. Step 6: Final answer
    x = 17,835,758.91

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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.