Home / 209,274,415.90-288,849,949.94-162,138,256.40

Finding the Fourth Proportional to 209,274,415.90, 288,849,949.94 and 162,138,256.40

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Solution

The fourth proportional to 209,274,415.90, 288,849,949.94 and 162,138,256.40 is: 223,790,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,274,415.90 : 288,849,949.94 = 162,138,256.40 : x
  2. Step 2: Convert to fraction form
    209,274,415.90/288,849,949.94 = 162,138,256.40/x
  3. Step 3: Cross multiply
    209,274,415.90x = 288,849,949.94 × 162,138,256.40
  4. Step 4: Simplify right side
    209,274,415.90x = 46,833,627,245,626,352
  5. Step 5: Solve for x
    x = 46,833,627,245,626,352/209,274,415.90
  6. Step 6: Final answer
    x = 223,790,505.14

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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.