Finding the Fourth Proportional to 19,812,321.54, 29,721,435.12 and 7,031,755.98
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Solution
The fourth proportional to 19,812,321.54, 29,721,435.12 and 7,031,755.98 is: 10,548,681.98
Step by Step Solution
- Step 1: Write the proportion equation
19,812,321.54 : 29,721,435.12 = 7,031,755.98 : x - Step 2: Convert to fraction form
19,812,321.54/29,721,435.12 = 7,031,755.98/x - Step 3: Cross multiply
19,812,321.54x = 29,721,435.12 × 7,031,755.98 - Step 4: Simplify right side
19,812,321.54x = 208,993,879,139,242.03 - Step 5: Solve for x
x = 208,993,879,139,242.03/19,812,321.54 - Step 6: Final answer
x = 10,548,681.98
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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.