Finding the Fourth Proportional to 1,224,086,623,221.20, 1,689,781,277,066.50 and 790,750,348,676.10
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Solution
The fourth proportional to 1,224,086,623,221.20, 1,689,781,277,066.50 and 790,750,348,676.10 is: 1,091,585,439,035.73
Step by Step Solution
- Step 1: Write the proportion equation
1,224,086,623,221.20 : 1,689,781,277,066.50 = 790,750,348,676.10 : x - Step 2: Convert to fraction form
1,224,086,623,221.20/1,689,781,277,066.50 = 790,750,348,676.10/x - Step 3: Cross multiply
1,224,086,623,221.20x = 1,689,781,277,066.50 × 790,750,348,676.10 - Step 4: Simplify right side
1,224,086,623,221.20x = 1,336,195,134,026,680,268,488,704 - Step 5: Solve for x
x = 1,336,195,134,026,680,268,488,704/1,224,086,623,221.20 - Step 6: Final answer
x = 1,091,585,439,035.73
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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.