Finding the Fourth Proportional to 499,602,916, 689,524,176.32 and 287,869,210.12
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Solution
The fourth proportional to 499,602,916, 689,524,176.32 and 287,869,210.12 is: 397,301,083.80
Step by Step Solution
- Step 1: Write the proportion equation
499,602,916 : 689,524,176.32 = 287,869,210.12 : x - Step 2: Convert to fraction form
499,602,916/689,524,176.32 = 287,869,210.12/x - Step 3: Cross multiply
499,602,916x = 689,524,176.32 × 287,869,210.12 - Step 4: Simplify right side
499,602,916x = 198,492,779,995,882,016 - Step 5: Solve for x
x = 198,492,779,995,882,016/499,602,916 - Step 6: Final answer
x = 397,301,083.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.