Home / 13,190,813.60-19,786,220.40-11,889,111.20

Finding the Fourth Proportional to 13,190,813.60, 19,786,220.40 and 11,889,111.20

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Solution

The fourth proportional to 13,190,813.60, 19,786,220.40 and 11,889,111.20 is: 17,833,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190,813.60 : 19,786,220.40 = 11,889,111.20 : x
  2. Step 2: Convert to fraction form
    13,190,813.60/19,786,220.40 = 11,889,111.20/x
  3. Step 3: Cross multiply
    13,190,813.60x = 19,786,220.40 × 11,889,111.20
  4. Step 4: Simplify right side
    13,190,813.60x = 235,240,574,563,308.44
  5. Step 5: Solve for x
    x = 235,240,574,563,308.44/13,190,813.60
  6. Step 6: Final answer
    x = 17,833,666.80

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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.