Home / 134,839,163.08-186,009,492.90-81,901,783.72

Finding the Fourth Proportional to 134,839,163.08, 186,009,492.90 and 81,901,783.72

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Solution

The fourth proportional to 134,839,163.08, 186,009,492.90 and 81,901,783.72 is: 112,982,822.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,839,163.08 : 186,009,492.90 = 81,901,783.72 : x
  2. Step 2: Convert to fraction form
    134,839,163.08/186,009,492.90 = 81,901,783.72/x
  3. Step 3: Cross multiply
    134,839,163.08x = 186,009,492.90 × 81,901,783.72
  4. Step 4: Simplify right side
    134,839,163.08x = 15,234,509,257,362,676
  5. Step 5: Solve for x
    x = 15,234,509,257,362,676/134,839,163.08
  6. Step 6: Final answer
    x = 112,982,822.72

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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.