Home / 140,600,106,871.61-194,044,243,539.64-78,817,363,429.73

Finding the Fourth Proportional to 140,600,106,871.61, 194,044,243,539.64 and 78,817,363,429.73

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Solution

The fourth proportional to 140,600,106,871.61, 194,044,243,539.64 and 78,817,363,429.73 is: 108,776,984,632.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,600,106,871.61 : 194,044,243,539.64 = 78,817,363,429.73 : x
  2. Step 2: Convert to fraction form
    140,600,106,871.61/194,044,243,539.64 = 78,817,363,429.73/x
  3. Step 3: Cross multiply
    140,600,106,871.61x = 194,044,243,539.64 × 78,817,363,429.73
  4. Step 4: Simplify right side
    140,600,106,871.61x = 15,294,055,664,509,876,436,992
  5. Step 5: Solve for x
    x = 15,294,055,664,509,876,436,992/140,600,106,871.61
  6. Step 6: Final answer
    x = 108,776,984,632.56

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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.