Home / 198,685,068.63-298,054,868.52-67,492,122.50

Finding the Fourth Proportional to 198,685,068.63, 298,054,868.52 and 67,492,122.50

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Solution

The fourth proportional to 198,685,068.63, 298,054,868.52 and 67,492,122.50 is: 101,247,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,685,068.63 : 298,054,868.52 = 67,492,122.50 : x
  2. Step 2: Convert to fraction form
    198,685,068.63/298,054,868.52 = 67,492,122.50/x
  3. Step 3: Cross multiply
    198,685,068.63x = 298,054,868.52 × 67,492,122.50
  4. Step 4: Simplify right side
    198,685,068.63x = 20,116,355,696,382,960
  5. Step 5: Solve for x
    x = 20,116,355,696,382,960/198,685,068.63
  6. Step 6: Final answer
    x = 101,247,445.69

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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.