Finding the Fourth Proportional to 252,950,562.98, 349,044,903.12 and 139,902,090.66
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Solution
The fourth proportional to 252,950,562.98, 349,044,903.12 and 139,902,090.66 is: 193,050,021.73
Step by Step Solution
- Step 1: Write the proportion equation
252,950,562.98 : 349,044,903.12 = 139,902,090.66 : x - Step 2: Convert to fraction form
252,950,562.98/349,044,903.12 = 139,902,090.66/x - Step 3: Cross multiply
252,950,562.98x = 349,044,903.12 × 139,902,090.66 - Step 4: Simplify right side
252,950,562.98x = 48,832,111,680,705,160 - Step 5: Solve for x
x = 48,832,111,680,705,160/252,950,562.98 - Step 6: Final answer
x = 193,050,021.73
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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.