Finding the Fourth Proportional to 352,588,931.80, 528,883,397.70 and 209,261,699.80
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Solution
The fourth proportional to 352,588,931.80, 528,883,397.70 and 209,261,699.80 is: 313,892,549.70
Step by Step Solution
- Step 1: Write the proportion equation
352,588,931.80 : 528,883,397.70 = 209,261,699.80 : x - Step 2: Convert to fraction form
352,588,931.80/528,883,397.70 = 209,261,699.80/x - Step 3: Cross multiply
352,588,931.80x = 528,883,397.70 × 209,261,699.80 - Step 4: Simplify right side
352,588,931.80x = 110,675,038,798,701,408 - Step 5: Solve for x
x = 110,675,038,798,701,408/352,588,931.80 - Step 6: Final answer
x = 313,892,549.70
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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.