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Finding the Fourth Proportional to 17,779,507.60, 26,669,261.40 and 12,299,760.40

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Solution

The fourth proportional to 17,779,507.60, 26,669,261.40 and 12,299,760.40 is: 18,449,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,779,507.60 : 26,669,261.40 = 12,299,760.40 : x
  2. Step 2: Convert to fraction form
    17,779,507.60/26,669,261.40 = 12,299,760.40/x
  3. Step 3: Cross multiply
    17,779,507.60x = 26,669,261.40 × 12,299,760.40
  4. Step 4: Simplify right side
    17,779,507.60x = 328,025,525,264,968.56
  5. Step 5: Solve for x
    x = 328,025,525,264,968.56/17,779,507.60
  6. Step 6: Final answer
    x = 18,449,640.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.