Finding the Fourth Proportional to 251,848,794,154.20, 347,551,310,263.90 and 137,663,871,148.53
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Solution
The fourth proportional to 251,848,794,154.20, 347,551,310,263.90 and 137,663,871,148.53 is: 189,976,128,154.01
Step by Step Solution
- Step 1: Write the proportion equation
251,848,794,154.20 : 347,551,310,263.90 = 137,663,871,148.53 : x - Step 2: Convert to fraction form
251,848,794,154.20/347,551,310,263.90 = 137,663,871,148.53/x - Step 3: Cross multiply
251,848,794,154.20x = 347,551,310,263.90 × 137,663,871,148.53 - Step 4: Simplify right side
251,848,794,154.20x = 47,845,258,793,672,308,162,560 - Step 5: Solve for x
x = 47,845,258,793,672,308,162,560/251,848,794,154.20 - Step 6: Final answer
x = 189,976,128,154.01
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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.