Home / 13,903,536,713.40-20,855,305,070.10-12,978,404,220.60

Finding the Fourth Proportional to 13,903,536,713.40, 20,855,305,070.10 and 12,978,404,220.60

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Solution

The fourth proportional to 13,903,536,713.40, 20,855,305,070.10 and 12,978,404,220.60 is: 19,467,606,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903,536,713.40 : 20,855,305,070.10 = 12,978,404,220.60 : x
  2. Step 2: Convert to fraction form
    13,903,536,713.40/20,855,305,070.10 = 12,978,404,220.60/x
  3. Step 3: Cross multiply
    13,903,536,713.40x = 20,855,305,070.10 × 12,978,404,220.60
  4. Step 4: Simplify right side
    13,903,536,713.40x = 270,668,579,343,686,402,048
  5. Step 5: Solve for x
    x = 270,668,579,343,686,402,048/13,903,536,713.40
  6. Step 6: Final answer
    x = 19,467,606,330.90

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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.