Finding the Fourth Proportional to 19,708,893.96, 29,381,160.23 and 19,398,296.20
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Solution
The fourth proportional to 19,708,893.96, 29,381,160.23 and 19,398,296.20 is: 28,918,134.62
Step by Step Solution
- Step 1: Write the proportion equation
19,708,893.96 : 29,381,160.23 = 19,398,296.20 : x - Step 2: Convert to fraction form
19,708,893.96/29,381,160.23 = 19,398,296.20/x - Step 3: Cross multiply
19,708,893.96x = 29,381,160.23 × 19,398,296.20 - Step 4: Simplify right side
19,708,893.96x = 569,944,448,841,200.12 - Step 5: Solve for x
x = 569,944,448,841,200.12/19,708,893.96 - Step 6: Final answer
x = 28,918,134.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.