Home / 144,292,740.66-199,118,646.36-78,211,819.89

Finding the Fourth Proportional to 144,292,740.66, 199,118,646.36 and 78,211,819.89

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Solution

The fourth proportional to 144,292,740.66, 199,118,646.36 and 78,211,819.89 is: 107,929,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292,740.66 : 199,118,646.36 = 78,211,819.89 : x
  2. Step 2: Convert to fraction form
    144,292,740.66/199,118,646.36 = 78,211,819.89/x
  3. Step 3: Cross multiply
    144,292,740.66x = 199,118,646.36 × 78,211,819.89
  4. Step 4: Simplify right side
    144,292,740.66x = 15,573,431,705,848,926
  5. Step 5: Solve for x
    x = 15,573,431,705,848,926/144,292,740.66
  6. Step 6: Final answer
    x = 107,929,419.28

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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.