Finding the Fourth Proportional to 1,243,056,786.84, 1,715,418,536.58 and 686,139,951.96
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Solution
The fourth proportional to 1,243,056,786.84, 1,715,418,536.58 and 686,139,951.96 is: 946,873,227.95
Step by Step Solution
- Step 1: Write the proportion equation
1,243,056,786.84 : 1,715,418,536.58 = 686,139,951.96 : x - Step 2: Convert to fraction form
1,243,056,786.84/1,715,418,536.58 = 686,139,951.96/x - Step 3: Cross multiply
1,243,056,786.84x = 1,715,418,536.58 × 686,139,951.96 - Step 4: Simplify right side
1,243,056,786.84x = 1,177,017,192,280,294,656 - Step 5: Solve for x
x = 1,177,017,192,280,294,656/1,243,056,786.84 - Step 6: Final answer
x = 946,873,227.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.