Finding the Fourth Proportional to 1,135,245,603.10, 1,702,868,404.65 and 829,135,587.10
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Solution
The fourth proportional to 1,135,245,603.10, 1,702,868,404.65 and 829,135,587.10 is: 1,243,703,380.65
Step by Step Solution
- Step 1: Write the proportion equation
1,135,245,603.10 : 1,702,868,404.65 = 829,135,587.10 : x - Step 2: Convert to fraction form
1,135,245,603.10/1,702,868,404.65 = 829,135,587.10/x - Step 3: Cross multiply
1,135,245,603.10x = 1,702,868,404.65 × 829,135,587.10 - Step 4: Simplify right side
1,135,245,603.10x = 1,411,908,794,443,518,208 - Step 5: Solve for x
x = 1,411,908,794,443,518,208/1,135,245,603.10 - Step 6: Final answer
x = 1,243,703,380.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.