Finding the Fourth Proportional to 620,221,443.93, 855,905,673.92 and 337,963,932.09
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Solution
The fourth proportional to 620,221,443.93, 855,905,673.92 and 337,963,932.09 is: 466,390,270.58
Step by Step Solution
- Step 1: Write the proportion equation
620,221,443.93 : 855,905,673.92 = 337,963,932.09 : x - Step 2: Convert to fraction form
620,221,443.93/855,905,673.92 = 337,963,932.09/x - Step 3: Cross multiply
620,221,443.93x = 855,905,673.92 × 337,963,932.09 - Step 4: Simplify right side
620,221,443.93x = 289,265,247,054,454,720 - Step 5: Solve for x
x = 289,265,247,054,454,720/620,221,443.93 - Step 6: Final answer
x = 466,390,270.58
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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.