Finding the Fourth Proportional to 1,198,923,689.81, 1,654,430,700.58 and 697,096,871.26
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Solution
The fourth proportional to 1,198,923,689.81, 1,654,430,700.58 and 697,096,871.26 is: 961,944,846.77
Step by Step Solution
- Step 1: Write the proportion equation
1,198,923,689.81 : 1,654,430,700.58 = 697,096,871.26 : x - Step 2: Convert to fraction form
1,198,923,689.81/1,654,430,700.58 = 697,096,871.26/x - Step 3: Cross multiply
1,198,923,689.81x = 1,654,430,700.58 × 697,096,871.26 - Step 4: Simplify right side
1,198,923,689.81x = 1,153,298,465,084,929,280 - Step 5: Solve for x
x = 1,153,298,465,084,929,280/1,198,923,689.81 - Step 6: Final answer
x = 961,944,846.77
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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.