Home / 160,686,099.87-221,749,247.49-90,137,348.67

Finding the Fourth Proportional to 160,686,099.87, 221,749,247.49 and 90,137,348.67

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Solution

The fourth proportional to 160,686,099.87, 221,749,247.49 and 90,137,348.67 is: 124,390,904.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,099.87 : 221,749,247.49 = 90,137,348.67 : x
  2. Step 2: Convert to fraction form
    160,686,099.87/221,749,247.49 = 90,137,348.67/x
  3. Step 3: Cross multiply
    160,686,099.87x = 221,749,247.49 × 90,137,348.67
  4. Step 4: Simplify right side
    160,686,099.87x = 19,987,889,238,316,252
  5. Step 5: Solve for x
    x = 19,987,889,238,316,252/160,686,099.87
  6. Step 6: Final answer
    x = 124,390,904.09

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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.