Finding the Fourth Proportional to 2,213,354,612.20, 3,320,031,918.30 and 577,579,214.20
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Solution
The fourth proportional to 2,213,354,612.20, 3,320,031,918.30 and 577,579,214.20 is: 866,368,821.30
Step by Step Solution
- Step 1: Write the proportion equation
2,213,354,612.20 : 3,320,031,918.30 = 577,579,214.20 : x - Step 2: Convert to fraction form
2,213,354,612.20/3,320,031,918.30 = 577,579,214.20/x - Step 3: Cross multiply
2,213,354,612.20x = 3,320,031,918.30 × 577,579,214.20 - Step 4: Simplify right side
2,213,354,612.20x = 1,917,581,426,490,632,960 - Step 5: Solve for x
x = 1,917,581,426,490,632,960/2,213,354,612.20 - Step 6: Final answer
x = 866,368,821.30
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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.