Finding the Fourth Proportional to 168,546,882.30, 252,820,323.45 and 86,551,440.90
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Solution
The fourth proportional to 168,546,882.30, 252,820,323.45 and 86,551,440.90 is: 129,827,161.35
Step by Step Solution
- Step 1: Write the proportion equation
168,546,882.30 : 252,820,323.45 = 86,551,440.90 : x - Step 2: Convert to fraction form
168,546,882.30/252,820,323.45 = 86,551,440.90/x - Step 3: Cross multiply
168,546,882.30x = 252,820,323.45 × 86,551,440.90 - Step 4: Simplify right side
168,546,882.30x = 21,881,963,283,401,560 - Step 5: Solve for x
x = 21,881,963,283,401,560/168,546,882.30 - Step 6: Final answer
x = 129,827,161.35
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1.5x scale
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.