Home / 1,095,885,719.69-1,644,102,665.36-319,531,380.40

Finding the Fourth Proportional to 1,095,885,719.69, 1,644,102,665.36 and 319,531,380.40

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Solution

The fourth proportional to 1,095,885,719.69, 1,644,102,665.36 and 319,531,380.40 is: 479,376,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,885,719.69 : 1,644,102,665.36 = 319,531,380.40 : x
  2. Step 2: Convert to fraction form
    1,095,885,719.69/1,644,102,665.36 = 319,531,380.40/x
  3. Step 3: Cross multiply
    1,095,885,719.69x = 1,644,102,665.36 × 319,531,380.40
  4. Step 4: Simplify right side
    1,095,885,719.69x = 525,342,394,183,439,808
  5. Step 5: Solve for x
    x = 525,342,394,183,439,808/1,095,885,719.69
  6. Step 6: Final answer
    x = 479,376,986.80

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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.