Finding the Fourth Proportional to 122,212,429.05, 168,657,586.88 and 70,011,553.53
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Solution
The fourth proportional to 122,212,429.05, 168,657,586.88 and 70,011,553.53 is: 96,618,484.42
Step by Step Solution
- Step 1: Write the proportion equation
122,212,429.05 : 168,657,586.88 = 70,011,553.53 : x - Step 2: Convert to fraction form
122,212,429.05/168,657,586.88 = 70,011,553.53/x - Step 3: Cross multiply
122,212,429.05x = 168,657,586.88 × 70,011,553.53 - Step 4: Simplify right side
122,212,429.05x = 11,807,979,671,739,688 - Step 5: Solve for x
x = 11,807,979,671,739,688/122,212,429.05 - Step 6: Final answer
x = 96,618,484.42
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1.5x scale
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.