Finding the Fourth Proportional to 28,419,355.28, 42,622,603.68 and 13,051,871.12
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Solution
The fourth proportional to 28,419,355.28, 42,622,603.68 and 13,051,871.12 is: 19,574,853.99
Step by Step Solution
- Step 1: Write the proportion equation
28,419,355.28 : 42,622,603.68 = 13,051,871.12 : x - Step 2: Convert to fraction form
28,419,355.28/42,622,603.68 = 13,051,871.12/x - Step 3: Cross multiply
28,419,355.28x = 42,622,603.68 × 13,051,871.12 - Step 4: Simplify right side
28,419,355.28x = 556,304,730,030,197.69 - Step 5: Solve for x
x = 556,304,730,030,197.69/28,419,355.28 - Step 6: Final answer
x = 19,574,853.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.