Finding the Fourth Proportional to 75,029,419.23, 103,540,598.55 and 40,690,603.23
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Solution
The fourth proportional to 75,029,419.23, 103,540,598.55 and 40,690,603.23 is: 56,153,032.46
Step by Step Solution
- Step 1: Write the proportion equation
75,029,419.23 : 103,540,598.55 = 40,690,603.23 : x - Step 2: Convert to fraction form
75,029,419.23/103,540,598.55 = 40,690,603.23/x - Step 3: Cross multiply
75,029,419.23x = 103,540,598.55 × 40,690,603.23 - Step 4: Simplify right side
75,029,419.23x = 4,213,129,413,794,763 - Step 5: Solve for x
x = 4,213,129,413,794,763/75,029,419.23 - Step 6: Final answer
x = 56,153,032.46
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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.