Finding the Fourth Proportional to 1,331,316,299.32, 1,997,246,812.50 and 457,804,223.62
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Solution
The fourth proportional to 1,331,316,299.32, 1,997,246,812.50 and 457,804,223.62 is: 686,799,993.99
Step by Step Solution
- Step 1: Write the proportion equation
1,331,316,299.32 : 1,997,246,812.50 = 457,804,223.62 : x - Step 2: Convert to fraction form
1,331,316,299.32/1,997,246,812.50 = 457,804,223.62/x - Step 3: Cross multiply
1,331,316,299.32x = 1,997,246,812.50 × 457,804,223.62 - Step 4: Simplify right side
1,331,316,299.32x = 914,348,026,374,082,176 - Step 5: Solve for x
x = 914,348,026,374,082,176/1,331,316,299.32 - Step 6: Final answer
x = 686,799,993.99
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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.