Home / 19,071,186.60-28,606,779.90-11,890,828.20

Finding the Fourth Proportional to 19,071,186.60, 28,606,779.90 and 11,890,828.20

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Solution

The fourth proportional to 19,071,186.60, 28,606,779.90 and 11,890,828.20 is: 17,836,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071,186.60 : 28,606,779.90 = 11,890,828.20 : x
  2. Step 2: Convert to fraction form
    19,071,186.60/28,606,779.90 = 11,890,828.20/x
  3. Step 3: Cross multiply
    19,071,186.60x = 28,606,779.90 × 11,890,828.20
  4. Step 4: Simplify right side
    19,071,186.60x = 340,158,305,146,113.12
  5. Step 5: Solve for x
    x = 340,158,305,146,113.12/19,071,186.60
  6. Step 6: Final answer
    x = 17,836,242.30

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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.