Home / 287,078,059.56-396,169,715.10-163,318,736.69

Finding the Fourth Proportional to 287,078,059.56, 396,169,715.10 and 163,318,736.69

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Solution

The fourth proportional to 287,078,059.56, 396,169,715.10 and 163,318,736.69 is: 225,380,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,078,059.56 : 396,169,715.10 = 163,318,736.69 : x
  2. Step 2: Convert to fraction form
    287,078,059.56/396,169,715.10 = 163,318,736.69/x
  3. Step 3: Cross multiply
    287,078,059.56x = 396,169,715.10 × 163,318,736.69
  4. Step 4: Simplify right side
    287,078,059.56x = 64,701,937,384,969,216
  5. Step 5: Solve for x
    x = 64,701,937,384,969,216/287,078,059.56
  6. Step 6: Final answer
    x = 225,380,990.40

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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.