Finding the Fourth Proportional to 251,877,308.42, 347,575,395.15 and 138,841,846.49
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Solution
The fourth proportional to 251,877,308.42, 347,575,395.15 and 138,841,846.49 is: 191,593,319.62
Step by Step Solution
- Step 1: Write the proportion equation
251,877,308.42 : 347,575,395.15 = 138,841,846.49 : x - Step 2: Convert to fraction form
251,877,308.42/347,575,395.15 = 138,841,846.49/x - Step 3: Cross multiply
251,877,308.42x = 347,575,395.15 × 138,841,846.49 - Step 4: Simplify right side
251,877,308.42x = 48,258,009,655,379,512 - Step 5: Solve for x
x = 48,258,009,655,379,512/251,877,308.42 - Step 6: Final answer
x = 191,593,319.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.