Home / 86,408,763,493.41-129,612,427,840.78-67,537,913,494.94

Finding the Fourth Proportional to 86,408,763,493.41, 129,612,427,840.78 and 67,537,913,494.94

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Solution

The fourth proportional to 86,408,763,493.41, 129,612,427,840.78 and 67,537,913,494.94 is: 101,306,309,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,408,763,493.41 : 129,612,427,840.78 = 67,537,913,494.94 : x
  2. Step 2: Convert to fraction form
    86,408,763,493.41/129,612,427,840.78 = 67,537,913,494.94/x
  3. Step 3: Cross multiply
    86,408,763,493.41x = 129,612,427,840.78 × 67,537,913,494.94
  4. Step 4: Simplify right side
    86,408,763,493.41x = 8,753,752,939,379,493,437,440
  5. Step 5: Solve for x
    x = 8,753,752,939,379,493,437,440/86,408,763,493.41
  6. Step 6: Final answer
    x = 101,306,309,516.25

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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.