Finding the Fourth Proportional to 115,055,128.70, 158,775,025.88 and 62,844,148.70
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Solution
The fourth proportional to 115,055,128.70, 158,775,025.88 and 62,844,148.70 is: 86,724,350.74
Step by Step Solution
- Step 1: Write the proportion equation
115,055,128.70 : 158,775,025.88 = 62,844,148.70 : x - Step 2: Convert to fraction form
115,055,128.70/158,775,025.88 = 62,844,148.70/x - Step 3: Cross multiply
115,055,128.70x = 158,775,025.88 × 62,844,148.70 - Step 4: Simplify right side
115,055,128.70x = 9,978,081,336,249,068 - Step 5: Solve for x
x = 9,978,081,336,249,068/115,055,128.70 - Step 6: Final answer
x = 86,724,350.74
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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.