Finding the Fourth Proportional to 19,702,013.99, 29,553,019.43 and 9,985,113.53
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Solution
The fourth proportional to 19,702,013.99, 29,553,019.43 and 9,985,113.53 is: 14,977,669.51
Step by Step Solution
- Step 1: Write the proportion equation
19,702,013.99 : 29,553,019.43 = 9,985,113.53 : x - Step 2: Convert to fraction form
19,702,013.99/29,553,019.43 = 9,985,113.53/x - Step 3: Cross multiply
19,702,013.99x = 29,553,019.43 × 9,985,113.53 - Step 4: Simplify right side
19,702,013.99x = 295,090,254,201,224.12 - Step 5: Solve for x
x = 295,090,254,201,224.12/19,702,013.99 - Step 6: Final answer
x = 14,977,669.51
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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.