Finding the Fourth Proportional to 14,026,129.68, 19,355,869.80 and 7,831,271.28
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Solution
The fourth proportional to 14,026,129.68, 19,355,869.80 and 7,831,271.28 is: 10,807,048.75
Step by Step Solution
- Step 1: Write the proportion equation
14,026,129.68 : 19,355,869.80 = 7,831,271.28 : x - Step 2: Convert to fraction form
14,026,129.68/19,355,869.80 = 7,831,271.28/x - Step 3: Cross multiply
14,026,129.68x = 19,355,869.80 × 7,831,271.28 - Step 4: Simplify right side
14,026,129.68x = 151,581,067,264,159.34 - Step 5: Solve for x
x = 151,581,067,264,159.34/14,026,129.68 - Step 6: Final answer
x = 10,807,048.75
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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.