Finding the Fourth Proportional to 383,411,830.96, 529,132,038.15 and 211,552,070.98
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Solution
The fourth proportional to 383,411,830.96, 529,132,038.15 and 211,552,070.98 is: 291,954,941.02
Step by Step Solution
- Step 1: Write the proportion equation
383,411,830.96 : 529,132,038.15 = 211,552,070.98 : x - Step 2: Convert to fraction form
383,411,830.96/529,132,038.15 = 211,552,070.98/x - Step 3: Cross multiply
383,411,830.96x = 529,132,038.15 × 211,552,070.98 - Step 4: Simplify right side
383,411,830.96x = 111,938,978,492,500,864 - Step 5: Solve for x
x = 111,938,978,492,500,864/383,411,830.96 - Step 6: Final answer
x = 291,954,941.02
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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.