Finding the Fourth Proportional to 690,963,183.84, 953,529,238.80 and 377,698,638.88
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Solution
The fourth proportional to 690,963,183.84, 953,529,238.80 and 377,698,638.88 is: 521,224,146.31
Step by Step Solution
- Step 1: Write the proportion equation
690,963,183.84 : 953,529,238.80 = 377,698,638.88 : x - Step 2: Convert to fraction form
690,963,183.84/953,529,238.80 = 377,698,638.88/x - Step 3: Cross multiply
690,963,183.84x = 953,529,238.80 × 377,698,638.88 - Step 4: Simplify right side
690,963,183.84x = 360,146,695,627,042,432 - Step 5: Solve for x
x = 360,146,695,627,042,432/690,963,183.84 - Step 6: Final answer
x = 521,224,146.31
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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.