Home / 139,258,137.36-192,167,805.12-77,376,360

Finding the Fourth Proportional to 139,258,137.36, 192,167,805.12 and 77,376,360

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Solution

The fourth proportional to 139,258,137.36, 192,167,805.12 and 77,376,360 is: 106,774,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,258,137.36 : 192,167,805.12 = 77,376,360 : x
  2. Step 2: Convert to fraction form
    139,258,137.36/192,167,805.12 = 77,376,360/x
  3. Step 3: Cross multiply
    139,258,137.36x = 192,167,805.12 × 77,376,360
  4. Step 4: Simplify right side
    139,258,137.36x = 14,869,245,269,374,964
  5. Step 5: Solve for x
    x = 14,869,245,269,374,964/139,258,137.36
  6. Step 6: Final answer
    x = 106,774,695.91

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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.