Home / 636,965,732,930.80-879,012,677,823.40-343,990,627,557.62

Finding the Fourth Proportional to 636,965,732,930.80, 879,012,677,823.40 and 343,990,627,557.62

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Solution

The fourth proportional to 636,965,732,930.80, 879,012,677,823.40 and 343,990,627,557.62 is: 474,707,047,872.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,965,732,930.80 : 879,012,677,823.40 = 343,990,627,557.62 : x
  2. Step 2: Convert to fraction form
    636,965,732,930.80/879,012,677,823.40 = 343,990,627,557.62/x
  3. Step 3: Cross multiply
    636,965,732,930.80x = 879,012,677,823.40 × 343,990,627,557.62
  4. Step 4: Simplify right side
    636,965,732,930.80x = 302,372,122,675,575,393,353,728
  5. Step 5: Solve for x
    x = 302,372,122,675,575,393,353,728/636,965,732,930.80
  6. Step 6: Final answer
    x = 474,707,047,872.58

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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.