Home / 160,405,069.47-221,353,268.50-90,788,955.67

Finding the Fourth Proportional to 160,405,069.47, 221,353,268.50 and 90,788,955.67

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Solution

The fourth proportional to 160,405,069.47, 221,353,268.50 and 90,788,955.67 is: 125,285,517.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,405,069.47 : 221,353,268.50 = 90,788,955.67 : x
  2. Step 2: Convert to fraction form
    160,405,069.47/221,353,268.50 = 90,788,955.67/x
  3. Step 3: Cross multiply
    160,405,069.47x = 221,353,268.50 × 90,788,955.67
  4. Step 4: Simplify right side
    160,405,069.47x = 20,096,432,080,802,164
  5. Step 5: Solve for x
    x = 20,096,432,080,802,164/160,405,069.47
  6. Step 6: Final answer
    x = 125,285,517.15

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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.