Finding the Fourth Proportional to 104,976,134.20, 157,464,201.30 and 85,828,511.80
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Solution
The fourth proportional to 104,976,134.20, 157,464,201.30 and 85,828,511.80 is: 128,742,767.70
Step by Step Solution
- Step 1: Write the proportion equation
104,976,134.20 : 157,464,201.30 = 85,828,511.80 : x - Step 2: Convert to fraction form
104,976,134.20/157,464,201.30 = 85,828,511.80/x - Step 3: Cross multiply
104,976,134.20x = 157,464,201.30 × 85,828,511.80 - Step 4: Simplify right side
104,976,134.20x = 13,514,918,059,354,626 - Step 5: Solve for x
x = 13,514,918,059,354,626/104,976,134.20 - Step 6: Final answer
x = 128,742,767.70
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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.