Finding the Fourth Proportional to 1,131,698,588.16, 1,561,476,899.79 and 951,331,320.84
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Solution
The fourth proportional to 1,131,698,588.16, 1,561,476,899.79 and 951,331,320.84 is: 1,312,612,648.88
Step by Step Solution
- Step 1: Write the proportion equation
1,131,698,588.16 : 1,561,476,899.79 = 951,331,320.84 : x - Step 2: Convert to fraction form
1,131,698,588.16/1,561,476,899.79 = 951,331,320.84/x - Step 3: Cross multiply
1,131,698,588.16x = 1,561,476,899.79 × 951,331,320.84 - Step 4: Simplify right side
1,131,698,588.16x = 1,485,481,881,538,369,024 - Step 5: Solve for x
x = 1,485,481,881,538,369,024/1,131,698,588.16 - Step 6: Final answer
x = 1,312,612,648.88
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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.