Finding the Fourth Proportional to 377,491,111.74, 520,813,153.35 and 307,756,604.70
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Solution
The fourth proportional to 377,491,111.74, 520,813,153.35 and 307,756,604.70 is: 424,602,547.64
Step by Step Solution
- Step 1: Write the proportion equation
377,491,111.74 : 520,813,153.35 = 307,756,604.70 : x - Step 2: Convert to fraction form
377,491,111.74/520,813,153.35 = 307,756,604.70/x - Step 3: Cross multiply
377,491,111.74x = 520,813,153.35 × 307,756,604.70 - Step 4: Simplify right side
377,491,111.74x = 160,283,687,758,096,416 - Step 5: Solve for x
x = 160,283,687,758,096,416/377,491,111.74 - Step 6: Final answer
x = 424,602,547.64
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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.