Home / 19,811,630.64-27,328,467-12,457,825.20

Finding the Fourth Proportional to 19,811,630.64, 27,328,467 and 12,457,825.20

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Solution

The fourth proportional to 19,811,630.64, 27,328,467 and 12,457,825.20 is: 17,184,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811,630.64 : 27,328,467 = 12,457,825.20 : x
  2. Step 2: Convert to fraction form
    19,811,630.64/27,328,467 = 12,457,825.20/x
  3. Step 3: Cross multiply
    19,811,630.64x = 27,328,467 × 12,457,825.20
  4. Step 4: Simplify right side
    19,811,630.64x = 340,453,264,869,968.38
  5. Step 5: Solve for x
    x = 340,453,264,869,968.38/19,811,630.64
  6. Step 6: Final answer
    x = 17,184,515.05

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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.