Finding the Fourth Proportional to 1,609,226,108.49, 2,220,232,923.04 and 939,688,171.74
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Solution
The fourth proportional to 1,609,226,108.49, 2,220,232,923.04 and 939,688,171.74 is: 1,296,478,229.68
Step by Step Solution
- Step 1: Write the proportion equation
1,609,226,108.49 : 2,220,232,923.04 = 939,688,171.74 : x - Step 2: Convert to fraction form
1,609,226,108.49/2,220,232,923.04 = 939,688,171.74/x - Step 3: Cross multiply
1,609,226,108.49x = 2,220,232,923.04 × 939,688,171.74 - Step 4: Simplify right side
1,609,226,108.49x = 2,086,326,616,288,413,696 - Step 5: Solve for x
x = 2,086,326,616,288,413,696/1,609,226,108.49 - Step 6: Final answer
x = 1,296,478,229.68
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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.