Finding the Fourth Proportional to 83,619,201.70, 125,428,802.55 and 83,619,201.70
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Solution
The fourth proportional to 83,619,201.70, 125,428,802.55 and 83,619,201.70 is: 125,428,802.55
Step by Step Solution
- Step 1: Write the proportion equation
83,619,201.70 : 125,428,802.55 = 83,619,201.70 : x - Step 2: Convert to fraction form
83,619,201.70/125,428,802.55 = 83,619,201.70/x - Step 3: Cross multiply
83,619,201.70x = 125,428,802.55 × 83,619,201.70 - Step 4: Simplify right side
83,619,201.70x = 10,488,256,339,417,924 - Step 5: Solve for x
x = 10,488,256,339,417,924/83,619,201.70 - Step 6: Final answer
x = 125,428,802.55
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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.