Finding the Fourth Proportional to 5,178,929,475.53, 7,146,909,233.66 and 2,890,037,686.07
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Solution
The fourth proportional to 5,178,929,475.53, 7,146,909,233.66 and 2,890,037,686.07 is: 3,988,244,505.31
Step by Step Solution
- Step 1: Write the proportion equation
5,178,929,475.53 : 7,146,909,233.66 = 2,890,037,686.07 : x - Step 2: Convert to fraction form
5,178,929,475.53/7,146,909,233.66 = 2,890,037,686.07/x - Step 3: Cross multiply
5,178,929,475.53x = 7,146,909,233.66 × 2,890,037,686.07 - Step 4: Simplify right side
5,178,929,475.53x = 20,654,837,024,170,557,440 - Step 5: Solve for x
x = 20,654,837,024,170,557,440/5,178,929,475.53 - Step 6: Final answer
x = 3,988,244,505.31
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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.