Finding the Fourth Proportional to 14,421,917,517.21, 19,902,363,029.99 and 7,991,844,903.53
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Solution
The fourth proportional to 14,421,917,517.21, 19,902,363,029.99 and 7,991,844,903.53 is: 11,028,810,722.26
Step by Step Solution
- Step 1: Write the proportion equation
14,421,917,517.21 : 19,902,363,029.99 = 7,991,844,903.53 : x - Step 2: Convert to fraction form
14,421,917,517.21/19,902,363,029.99 = 7,991,844,903.53/x - Step 3: Cross multiply
14,421,917,517.21x = 19,902,363,029.99 × 7,991,844,903.53 - Step 4: Simplify right side
14,421,917,517.21x = 159,056,598,549,403,598,848 - Step 5: Solve for x
x = 159,056,598,549,403,598,848/14,421,917,517.21 - Step 6: Final answer
x = 11,028,810,722.26
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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.