Home / 151,600,211.82-209,208,922.75-81,985,592.70

Finding the Fourth Proportional to 151,600,211.82, 209,208,922.75 and 81,985,592.70

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Solution

The fourth proportional to 151,600,211.82, 209,208,922.75 and 81,985,592.70 is: 113,140,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,600,211.82 : 209,208,922.75 = 81,985,592.70 : x
  2. Step 2: Convert to fraction form
    151,600,211.82/209,208,922.75 = 81,985,592.70/x
  3. Step 3: Cross multiply
    151,600,211.82x = 209,208,922.75 × 81,985,592.70
  4. Step 4: Simplify right side
    151,600,211.82x = 17,152,117,529,889,746
  5. Step 5: Solve for x
    x = 17,152,117,529,889,746/151,600,211.82
  6. Step 6: Final answer
    x = 113,140,458.87

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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.