Finding the Fourth Proportional to 42,018,775.68, 57,985,910.55 and 22,703,191.68
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Solution
The fourth proportional to 42,018,775.68, 57,985,910.55 and 22,703,191.68 is: 31,330,404.58
Step by Step Solution
- Step 1: Write the proportion equation
42,018,775.68 : 57,985,910.55 = 22,703,191.68 : x - Step 2: Convert to fraction form
42,018,775.68/57,985,910.55 = 22,703,191.68/x - Step 3: Cross multiply
42,018,775.68x = 57,985,910.55 × 22,703,191.68 - Step 4: Simplify right side
42,018,775.68x = 1,316,465,241,955,984.25 - Step 5: Solve for x
x = 1,316,465,241,955,984.25/42,018,775.68 - Step 6: Final answer
x = 31,330,404.58
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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.