Finding the Fourth Proportional to 1,225,801,658.08, 1,691,610,561.84 and 668,896,979.68
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Solution
The fourth proportional to 1,225,801,658.08, 1,691,610,561.84 and 668,896,979.68 is: 923,080,164.03
Step by Step Solution
- Step 1: Write the proportion equation
1,225,801,658.08 : 1,691,610,561.84 = 668,896,979.68 : x - Step 2: Convert to fraction form
1,225,801,658.08/1,691,610,561.84 = 668,896,979.68/x - Step 3: Cross multiply
1,225,801,658.08x = 1,691,610,561.84 × 668,896,979.68 - Step 4: Simplify right side
1,225,801,658.08x = 1,131,513,195,609,563,776 - Step 5: Solve for x
x = 1,131,513,195,609,563,776/1,225,801,658.08 - Step 6: Final answer
x = 923,080,164.03
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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.