Finding the Fourth Proportional to 155,340,901,592.35, 214,339,353,503.42 and 86,741,759,720.63
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Solution
The fourth proportional to 155,340,901,592.35, 214,339,353,503.42 and 86,741,759,720.63 is: 119,686,267,490.96
Step by Step Solution
- Step 1: Write the proportion equation
155,340,901,592.35 : 214,339,353,503.42 = 86,741,759,720.63 : x - Step 2: Convert to fraction form
155,340,901,592.35/214,339,353,503.42 = 86,741,759,720.63/x - Step 3: Cross multiply
155,340,901,592.35x = 214,339,353,503.42 × 86,741,759,720.63 - Step 4: Simplify right side
155,340,901,592.35x = 18,592,172,700,268,834,586,624 - Step 5: Solve for x
x = 18,592,172,700,268,834,586,624/155,340,901,592.35 - Step 6: Final answer
x = 119,686,267,490.96
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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.