Finding the Fourth Proportional to 1,031,129,346.96, 1,423,079,665.56 and 579,081,604.68
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Solution
The fourth proportional to 1,031,129,346.96, 1,423,079,665.56 and 579,081,604.68 is: 799,200,661.63
Step by Step Solution
- Step 1: Write the proportion equation
1,031,129,346.96 : 1,423,079,665.56 = 579,081,604.68 : x - Step 2: Convert to fraction form
1,031,129,346.96/1,423,079,665.56 = 579,081,604.68/x - Step 3: Cross multiply
1,031,129,346.96x = 1,423,079,665.56 × 579,081,604.68 - Step 4: Simplify right side
1,031,129,346.96x = 824,079,256,319,962,368 - Step 5: Solve for x
x = 824,079,256,319,962,368/1,031,129,346.96 - Step 6: Final answer
x = 799,200,661.63
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1.5x scale
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.