Home / 620,886,592.20-856,875,004.56-356,619,583.32

Finding the Fourth Proportional to 620,886,592.20, 856,875,004.56 and 356,619,583.32

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Solution

The fourth proportional to 620,886,592.20, 856,875,004.56 and 356,619,583.32 is: 492,164,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,886,592.20 : 856,875,004.56 = 356,619,583.32 : x
  2. Step 2: Convert to fraction form
    620,886,592.20/856,875,004.56 = 356,619,583.32/x
  3. Step 3: Cross multiply
    620,886,592.20x = 856,875,004.56 × 356,619,583.32
  4. Step 4: Simplify right side
    620,886,592.20x = 305,578,407,083,510,272
  5. Step 5: Solve for x
    x = 305,578,407,083,510,272/620,886,592.20
  6. Step 6: Final answer
    x = 492,164,609.32

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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.