Home / 21,424,596.96-29,570,235.12-12,727,601.28

Finding the Fourth Proportional to 21,424,596.96, 29,570,235.12 and 12,727,601.28

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Solution

The fourth proportional to 21,424,596.96, 29,570,235.12 and 12,727,601.28 is: 17,566,639.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424,596.96 : 29,570,235.12 = 12,727,601.28 : x
  2. Step 2: Convert to fraction form
    21,424,596.96/29,570,235.12 = 12,727,601.28/x
  3. Step 3: Cross multiply
    21,424,596.96x = 29,570,235.12 × 12,727,601.28
  4. Step 4: Simplify right side
    21,424,596.96x = 376,358,162,363,212.94
  5. Step 5: Solve for x
    x = 376,358,162,363,212.94/21,424,596.96
  6. Step 6: Final answer
    x = 17,566,639.09

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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.