Home / 742,777,972.60-1,025,042,890.62-408,287,014.60

Finding the Fourth Proportional to 742,777,972.60, 1,025,042,890.62 and 408,287,014.60

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Solution

The fourth proportional to 742,777,972.60, 1,025,042,890.62 and 408,287,014.60 is: 563,441,185.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,777,972.60 : 1,025,042,890.62 = 408,287,014.60 : x
  2. Step 2: Convert to fraction form
    742,777,972.60/1,025,042,890.62 = 408,287,014.60/x
  3. Step 3: Cross multiply
    742,777,972.60x = 1,025,042,890.62 × 408,287,014.60
  4. Step 4: Simplify right side
    742,777,972.60x = 418,511,701,648,194,176
  5. Step 5: Solve for x
    x = 418,511,701,648,194,176/742,777,972.60
  6. Step 6: Final answer
    x = 563,441,185.77

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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.