Home / 154,618,279.50-213,367,788.99-85,003,153.50

Finding the Fourth Proportional to 154,618,279.50, 213,367,788.99 and 85,003,153.50

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Solution

The fourth proportional to 154,618,279.50, 213,367,788.99 and 85,003,153.50 is: 117,301,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,618,279.50 : 213,367,788.99 = 85,003,153.50 : x
  2. Step 2: Convert to fraction form
    154,618,279.50/213,367,788.99 = 85,003,153.50/x
  3. Step 3: Cross multiply
    154,618,279.50x = 213,367,788.99 × 85,003,153.50
  4. Step 4: Simplify right side
    154,618,279.50x = 18,136,934,919,472,580
  5. Step 5: Solve for x
    x = 18,136,934,919,472,580/154,618,279.50
  6. Step 6: Final answer
    x = 117,301,362.93

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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.