Home / 207,679,425.42-286,685,852.92-129,401,654.39

Finding the Fourth Proportional to 207,679,425.42, 286,685,852.92 and 129,401,654.39

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Solution

The fourth proportional to 207,679,425.42, 286,685,852.92 and 129,401,654.39 is: 178,629,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,679,425.42 : 286,685,852.92 = 129,401,654.39 : x
  2. Step 2: Convert to fraction form
    207,679,425.42/286,685,852.92 = 129,401,654.39/x
  3. Step 3: Cross multiply
    207,679,425.42x = 286,685,852.92 × 129,401,654.39
  4. Step 4: Simplify right side
    207,679,425.42x = 37,097,623,657,374,352
  5. Step 5: Solve for x
    x = 37,097,623,657,374,352/207,679,425.42
  6. Step 6: Final answer
    x = 178,629,267.59

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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.