Finding the Fourth Proportional to 1,305,328,478.08, 1,957,418,148.42 and 691,768,952.32
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Solution
The fourth proportional to 1,305,328,478.08, 1,957,418,148.42 and 691,768,952.32 is: 1,037,348,931.34
Step by Step Solution
- Step 1: Write the proportion equation
1,305,328,478.08 : 1,957,418,148.42 = 691,768,952.32 : x - Step 2: Convert to fraction form
1,305,328,478.08/1,957,418,148.42 = 691,768,952.32/x - Step 3: Cross multiply
1,305,328,478.08x = 1,957,418,148.42 × 691,768,952.32 - Step 4: Simplify right side
1,305,328,478.08x = 1,354,081,101,784,657,920 - Step 5: Solve for x
x = 1,354,081,101,784,657,920/1,305,328,478.08 - Step 6: Final answer
x = 1,037,348,931.34
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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.