Home / 207,680,201.60-311,520,302.40-105,643,529.60

Finding the Fourth Proportional to 207,680,201.60, 311,520,302.40 and 105,643,529.60

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Solution

The fourth proportional to 207,680,201.60, 311,520,302.40 and 105,643,529.60 is: 158,465,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,680,201.60 : 311,520,302.40 = 105,643,529.60 : x
  2. Step 2: Convert to fraction form
    207,680,201.60/311,520,302.40 = 105,643,529.60/x
  3. Step 3: Cross multiply
    207,680,201.60x = 311,520,302.40 × 105,643,529.60
  4. Step 4: Simplify right side
    207,680,201.60x = 32,910,104,287,595,348
  5. Step 5: Solve for x
    x = 32,910,104,287,595,348/207,680,201.60
  6. Step 6: Final answer
    x = 158,465,294.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.