Finding the Fourth Proportional to 758,211,774.08, 1,137,360,205.12 and 212,910,792.80
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Solution
The fourth proportional to 758,211,774.08, 1,137,360,205.12 and 212,910,792.80 is: 319,378,135.83
Step by Step Solution
- Step 1: Write the proportion equation
758,211,774.08 : 1,137,360,205.12 = 212,910,792.80 : x - Step 2: Convert to fraction form
758,211,774.08/1,137,360,205.12 = 212,910,792.80/x - Step 3: Cross multiply
758,211,774.08x = 1,137,360,205.12 × 212,910,792.80 - Step 4: Simplify right side
758,211,774.08x = 242,156,262,971,269,824 - Step 5: Solve for x
x = 242,156,262,971,269,824/758,211,774.08 - Step 6: Final answer
x = 319,378,135.83
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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.