Home / 120,990,028,221.46-167,041,590,895.64-77,018,954,787.86

Finding the Fourth Proportional to 120,990,028,221.46, 167,041,590,895.64 and 77,018,954,787.86

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Solution

The fourth proportional to 120,990,028,221.46, 167,041,590,895.64 and 77,018,954,787.86 is: 106,334,124,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,990,028,221.46 : 167,041,590,895.64 = 77,018,954,787.86 : x
  2. Step 2: Convert to fraction form
    120,990,028,221.46/167,041,590,895.64 = 77,018,954,787.86/x
  3. Step 3: Cross multiply
    120,990,028,221.46x = 167,041,590,895.64 × 77,018,954,787.86
  4. Step 4: Simplify right side
    120,990,028,221.46x = 12,865,368,736,883,839,860,736
  5. Step 5: Solve for x
    x = 12,865,368,736,883,839,860,736/120,990,028,221.46
  6. Step 6: Final answer
    x = 106,334,124,605.17

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1.5x scale

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.