Home / 147,495,410.65-203,543,634.14-81,415,891.72

Finding the Fourth Proportional to 147,495,410.65, 203,543,634.14 and 81,415,891.72

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Solution

The fourth proportional to 147,495,410.65, 203,543,634.14 and 81,415,891.72 is: 112,353,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,495,410.65 : 203,543,634.14 = 81,415,891.72 : x
  2. Step 2: Convert to fraction form
    147,495,410.65/203,543,634.14 = 81,415,891.72/x
  3. Step 3: Cross multiply
    147,495,410.65x = 203,543,634.14 × 81,415,891.72
  4. Step 4: Simplify right side
    147,495,410.65x = 16,571,686,477,437,534
  5. Step 5: Solve for x
    x = 16,571,686,477,437,534/147,495,410.65
  6. Step 6: Final answer
    x = 112,353,912.60

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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.