Finding the Fourth Proportional to 3,078,237,664.99, 4,247,854,172.71 and 1,668,511,360.75
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Solution
The fourth proportional to 3,078,237,664.99, 4,247,854,172.71 and 1,668,511,360.75 is: 2,302,483,991.60
Step by Step Solution
- Step 1: Write the proportion equation
3,078,237,664.99 : 4,247,854,172.71 = 1,668,511,360.75 : x - Step 2: Convert to fraction form
3,078,237,664.99/4,247,854,172.71 = 1,668,511,360.75/x - Step 3: Cross multiply
3,078,237,664.99x = 4,247,854,172.71 × 1,668,511,360.75 - Step 4: Simplify right side
3,078,237,664.99x = 7,087,592,945,975,927,808 - Step 5: Solve for x
x = 7,087,592,945,975,927,808/3,078,237,664.99 - Step 6: Final answer
x = 2,302,483,991.60
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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.