Finding the Fourth Proportional to 1,533,238,543.53, 2,115,865,007.97 and 855,056,231.06
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Solution
The fourth proportional to 1,533,238,543.53, 2,115,865,007.97 and 855,056,231.06 is: 1,179,975,266.59
Step by Step Solution
- Step 1: Write the proportion equation
1,533,238,543.53 : 2,115,865,007.97 = 855,056,231.06 : x - Step 2: Convert to fraction form
1,533,238,543.53/2,115,865,007.97 = 855,056,231.06/x - Step 3: Cross multiply
1,533,238,543.53x = 2,115,865,007.97 × 855,056,231.06 - Step 4: Simplify right side
1,533,238,543.53x = 1,809,183,559,146,564,864 - Step 5: Solve for x
x = 1,809,183,559,146,564,864/1,533,238,543.53 - Step 6: Final answer
x = 1,179,975,266.59
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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.