Finding the Fourth Proportional to 19,430,966.25, 29,156,536.68 and 7,924,874.94
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Solution
The fourth proportional to 19,430,966.25, 29,156,536.68 and 7,924,874.94 is: 11,891,426.49
Step by Step Solution
- Step 1: Write the proportion equation
19,430,966.25 : 29,156,536.68 = 7,924,874.94 : x - Step 2: Convert to fraction form
19,430,966.25/29,156,536.68 = 7,924,874.94/x - Step 3: Cross multiply
19,430,966.25x = 29,156,536.68 × 7,924,874.94 - Step 4: Simplify right side
19,430,966.25x = 231,061,906,808,666.75 - Step 5: Solve for x
x = 231,061,906,808,666.75/19,430,966.25 - Step 6: Final answer
x = 11,891,426.49
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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.