Finding the Fourth Proportional to 122,212,430.05, 168,657,588.26 and 70,011,554.53
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Solution
The fourth proportional to 122,212,430.05, 168,657,588.26 and 70,011,554.53 is: 96,618,485.80
Step by Step Solution
- Step 1: Write the proportion equation
122,212,430.05 : 168,657,588.26 = 70,011,554.53 : x - Step 2: Convert to fraction form
122,212,430.05/168,657,588.26 = 70,011,554.53/x - Step 3: Cross multiply
122,212,430.05x = 168,657,588.26 × 70,011,554.53 - Step 4: Simplify right side
122,212,430.05x = 11,807,979,937,363,278 - Step 5: Solve for x
x = 11,807,979,937,363,278/122,212,430.05 - Step 6: Final answer
x = 96,618,485.80
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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.