Home / 305,041,615.06-421,160,131.29-234,351,325.78

Finding the Fourth Proportional to 305,041,615.06, 421,160,131.29 and 234,351,325.78

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Solution

The fourth proportional to 305,041,615.06, 421,160,131.29 and 234,351,325.78 is: 323,560,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,041,615.06 : 421,160,131.29 = 234,351,325.78 : x
  2. Step 2: Convert to fraction form
    305,041,615.06/421,160,131.29 = 234,351,325.78/x
  3. Step 3: Cross multiply
    305,041,615.06x = 421,160,131.29 × 234,351,325.78
  4. Step 4: Simplify right side
    305,041,615.06x = 98,699,435,133,490,368
  5. Step 5: Solve for x
    x = 98,699,435,133,490,368/305,041,615.06
  6. Step 6: Final answer
    x = 323,560,557.84

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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.