Home / 403,394,141.40-605,091,212.10-368,956,764.60

Finding the Fourth Proportional to 403,394,141.40, 605,091,212.10 and 368,956,764.60

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Solution

The fourth proportional to 403,394,141.40, 605,091,212.10 and 368,956,764.60 is: 553,435,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,394,141.40 : 605,091,212.10 = 368,956,764.60 : x
  2. Step 2: Convert to fraction form
    403,394,141.40/605,091,212.10 = 368,956,764.60/x
  3. Step 3: Cross multiply
    403,394,141.40x = 605,091,212.10 × 368,956,764.60
  4. Step 4: Simplify right side
    403,394,141.40x = 223,252,495,904,308,384
  5. Step 5: Solve for x
    x = 223,252,495,904,308,384/403,394,141.40
  6. Step 6: Final answer
    x = 553,435,146.90

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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.