Home / 138,846,954.42-191,628,315.95-85,940,631.95

Finding the Fourth Proportional to 138,846,954.42, 191,628,315.95 and 85,940,631.95

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Solution

The fourth proportional to 138,846,954.42, 191,628,315.95 and 85,940,631.95 is: 118,610,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,846,954.42 : 191,628,315.95 = 85,940,631.95 : x
  2. Step 2: Convert to fraction form
    138,846,954.42/191,628,315.95 = 85,940,631.95/x
  3. Step 3: Cross multiply
    138,846,954.42x = 191,628,315.95 × 85,940,631.95
  4. Step 4: Simplify right side
    138,846,954.42x = 16,468,658,570,869,418
  5. Step 5: Solve for x
    x = 16,468,658,570,869,418/138,846,954.42
  6. Step 6: Final answer
    x = 118,610,153.46

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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.