Home / 19,811,640.64-27,328,480.80-12,457,835.20

Finding the Fourth Proportional to 19,811,640.64, 27,328,480.80 and 12,457,835.20

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Solution

The fourth proportional to 19,811,640.64, 27,328,480.80 and 12,457,835.20 is: 17,184,528.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811,640.64 : 27,328,480.80 = 12,457,835.20 : x
  2. Step 2: Convert to fraction form
    19,811,640.64/27,328,480.80 = 12,457,835.20/x
  3. Step 3: Cross multiply
    19,811,640.64x = 27,328,480.80 × 12,457,835.20
  4. Step 4: Simplify right side
    19,811,640.64x = 340,453,710,072,764.12
  5. Step 5: Solve for x
    x = 340,453,710,072,764.12/19,811,640.64
  6. Step 6: Final answer
    x = 17,184,528.85

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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.