Home / 19,276,739,835.70-28,899,902,513.98-12,179,262,748.45

Finding the Fourth Proportional to 19,276,739,835.70, 28,899,902,513.98 and 12,179,262,748.45

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Solution

The fourth proportional to 19,276,739,835.70, 28,899,902,513.98 and 12,179,262,748.45 is: 18,259,286,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276,739,835.70 : 28,899,902,513.98 = 12,179,262,748.45 : x
  2. Step 2: Convert to fraction form
    19,276,739,835.70/28,899,902,513.98 = 12,179,262,748.45/x
  3. Step 3: Cross multiply
    19,276,739,835.70x = 28,899,902,513.98 × 12,179,262,748.45
  4. Step 4: Simplify right side
    19,276,739,835.70x = 351,979,506,122,321,100,800
  5. Step 5: Solve for x
    x = 351,979,506,122,321,100,800/19,276,739,835.70
  6. Step 6: Final answer
    x = 18,259,286,016.32

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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.