Home / 19,980,877.70-27,570,663.16-11,717,820.35

Finding the Fourth Proportional to 19,980,877.70, 27,570,663.16 and 11,717,820.35

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Solution

The fourth proportional to 19,980,877.70, 27,570,663.16 and 11,717,820.35 is: 16,168,863.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980,877.70 : 27,570,663.16 = 11,717,820.35 : x
  2. Step 2: Convert to fraction form
    19,980,877.70/27,570,663.16 = 11,717,820.35/x
  3. Step 3: Cross multiply
    19,980,877.70x = 27,570,663.16 × 11,717,820.35
  4. Step 4: Simplify right side
    19,980,877.70x = 323,068,077,775,485.44
  5. Step 5: Solve for x
    x = 323,068,077,775,485.44/19,980,877.70
  6. Step 6: Final answer
    x = 16,168,863.18

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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.