Finding the Fourth Proportional to 661,425,037.05, 912,759,307.68 and 364,060,921.53
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Solution
The fourth proportional to 661,425,037.05, 912,759,307.68 and 364,060,921.53 is: 502,400,084.78
Step by Step Solution
- Step 1: Write the proportion equation
661,425,037.05 : 912,759,307.68 = 364,060,921.53 : x - Step 2: Convert to fraction form
661,425,037.05/912,759,307.68 = 364,060,921.53/x - Step 3: Cross multiply
661,425,037.05x = 912,759,307.68 × 364,060,921.53 - Step 4: Simplify right side
661,425,037.05x = 332,299,994,690,430,848 - Step 5: Solve for x
x = 332,299,994,690,430,848/661,425,037.05 - Step 6: Final answer
x = 502,400,084.78
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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.