Finding the Fourth Proportional to 19,267,431.62, 28,893,946.73 and 7,749,011.09
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Solution
The fourth proportional to 19,267,431.62, 28,893,946.73 and 7,749,011.09 is: 11,620,620.65
Step by Step Solution
- Step 1: Write the proportion equation
19,267,431.62 : 28,893,946.73 = 7,749,011.09 : x - Step 2: Convert to fraction form
19,267,431.62/28,893,946.73 = 7,749,011.09/x - Step 3: Cross multiply
19,267,431.62x = 28,893,946.73 × 7,749,011.09 - Step 4: Simplify right side
19,267,431.62x = 223,899,513,678,129.06 - Step 5: Solve for x
x = 223,899,513,678,129.06/19,267,431.62 - Step 6: Final answer
x = 11,620,620.65
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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.