Home / 20,947,851.40-28,905,495.12-11,653,224.34

Finding the Fourth Proportional to 20,947,851.40, 28,905,495.12 and 11,653,224.34

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Solution

The fourth proportional to 20,947,851.40, 28,905,495.12 and 11,653,224.34 is: 16,080,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,851.40 : 28,905,495.12 = 11,653,224.34 : x
  2. Step 2: Convert to fraction form
    20,947,851.40/28,905,495.12 = 11,653,224.34/x
  3. Step 3: Cross multiply
    20,947,851.40x = 28,905,495.12 × 11,653,224.34
  4. Step 4: Simplify right side
    20,947,851.40x = 336,842,219,292,135.25
  5. Step 5: Solve for x
    x = 336,842,219,292,135.25/20,947,851.40
  6. Step 6: Final answer
    x = 16,080,036.70

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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.