Home / 12,301,407.40-18,452,111.10-11,405,612.20

Finding the Fourth Proportional to 12,301,407.40, 18,452,111.10 and 11,405,612.20

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Solution

The fourth proportional to 12,301,407.40, 18,452,111.10 and 11,405,612.20 is: 17,108,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301,407.40 : 18,452,111.10 = 11,405,612.20 : x
  2. Step 2: Convert to fraction form
    12,301,407.40/18,452,111.10 = 11,405,612.20/x
  3. Step 3: Cross multiply
    12,301,407.40x = 18,452,111.10 × 11,405,612.20
  4. Step 4: Simplify right side
    12,301,407.40x = 210,457,623,477,915.44
  5. Step 5: Solve for x
    x = 210,457,623,477,915.44/12,301,407.40
  6. Step 6: Final answer
    x = 17,108,418.30

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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.