Finding the Fourth Proportional to 690,965,006.66, 1,036,447,510.04 and 230,903,175.96
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Solution
The fourth proportional to 690,965,006.66, 1,036,447,510.04 and 230,903,175.96 is: 346,354,763.96
Step by Step Solution
- Step 1: Write the proportion equation
690,965,006.66 : 1,036,447,510.04 = 230,903,175.96 : x - Step 2: Convert to fraction form
690,965,006.66/1,036,447,510.04 = 230,903,175.96/x - Step 3: Cross multiply
690,965,006.66x = 1,036,447,510.04 × 230,903,175.96 - Step 4: Simplify right side
690,965,006.66x = 239,319,021,784,069,984 - Step 5: Solve for x
x = 239,319,021,784,069,984/690,965,006.66 - Step 6: Final answer
x = 346,354,763.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.