Home / 160,405,089.52-221,353,296.16-90,788,975.76

Finding the Fourth Proportional to 160,405,089.52, 221,353,296.16 and 90,788,975.76

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Solution

The fourth proportional to 160,405,089.52, 221,353,296.16 and 90,788,975.76 is: 125,285,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,405,089.52 : 221,353,296.16 = 90,788,975.76 : x
  2. Step 2: Convert to fraction form
    160,405,089.52/221,353,296.16 = 90,788,975.76/x
  3. Step 3: Cross multiply
    160,405,089.52x = 221,353,296.16 × 90,788,975.76
  4. Step 4: Simplify right side
    160,405,089.52x = 20,096,439,039,466,340
  5. Step 5: Solve for x
    x = 20,096,439,039,466,340/160,405,089.52
  6. Step 6: Final answer
    x = 125,285,544.86

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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.