Home / 427,730,829.60-641,734,419.36-197,850,710.88

Finding the Fourth Proportional to 427,730,829.60, 641,734,419.36 and 197,850,710.88

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Solution

The fourth proportional to 427,730,829.60, 641,734,419.36 and 197,850,710.88 is: 296,839,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,730,829.60 : 641,734,419.36 = 197,850,710.88 : x
  2. Step 2: Convert to fraction form
    427,730,829.60/641,734,419.36 = 197,850,710.88/x
  3. Step 3: Cross multiply
    427,730,829.60x = 641,734,419.36 × 197,850,710.88
  4. Step 4: Simplify right side
    427,730,829.60x = 126,967,611,066,540,032
  5. Step 5: Solve for x
    x = 126,967,611,066,540,032/427,730,829.60
  6. Step 6: Final answer
    x = 296,839,980.38

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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.