Home / 12,714,720.40-19,072,080.60-11,868,691.60

Finding the Fourth Proportional to 12,714,720.40, 19,072,080.60 and 11,868,691.60

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Solution

The fourth proportional to 12,714,720.40, 19,072,080.60 and 11,868,691.60 is: 17,803,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,714,720.40 : 19,072,080.60 = 11,868,691.60 : x
  2. Step 2: Convert to fraction form
    12,714,720.40/19,072,080.60 = 11,868,691.60/x
  3. Step 3: Cross multiply
    12,714,720.40x = 19,072,080.60 × 11,868,691.60
  4. Step 4: Simplify right side
    12,714,720.40x = 226,360,642,811,742.97
  5. Step 5: Solve for x
    x = 226,360,642,811,742.97/12,714,720.40
  6. Step 6: Final answer
    x = 17,803,037.40

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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.