Home / 216,072,409.72-298,179,939.98-118,287,265.72

Finding the Fourth Proportional to 216,072,409.72, 298,179,939.98 and 118,287,265.72

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Solution

The fourth proportional to 216,072,409.72, 298,179,939.98 and 118,287,265.72 is: 163,236,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,072,409.72 : 298,179,939.98 = 118,287,265.72 : x
  2. Step 2: Convert to fraction form
    216,072,409.72/298,179,939.98 = 118,287,265.72/x
  3. Step 3: Cross multiply
    216,072,409.72x = 298,179,939.98 × 118,287,265.72
  4. Step 4: Simplify right side
    216,072,409.72x = 35,270,889,792,787,912
  5. Step 5: Solve for x
    x = 35,270,889,792,787,912/216,072,409.72
  6. Step 6: Final answer
    x = 163,236,434.67

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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.