Finding the Fourth Proportional to 18,913,168,708.65, 28,376,918,197.97 and 11,355,231,420.68
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Solution
The fourth proportional to 18,913,168,708.65, 28,376,918,197.97 and 11,355,231,420.68 is: 17,037,148,989.00
Step by Step Solution
- Step 1: Write the proportion equation
18,913,168,708.65 : 28,376,918,197.97 = 11,355,231,420.68 : x - Step 2: Convert to fraction form
18,913,168,708.65/28,376,918,197.97 = 11,355,231,420.68/x - Step 3: Cross multiply
18,913,168,708.65x = 28,376,918,197.97 × 11,355,231,420.68 - Step 4: Simplify right side
18,913,168,708.65x = 322,226,473,143,456,366,592 - Step 5: Solve for x
x = 322,226,473,143,456,366,592/18,913,168,708.65 - Step 6: Final answer
x = 17,037,148,989.00
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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.