Finding the Fourth Proportional to 268,121,783,349.60, 402,223,999,877.60 and 91,416,715,513.44
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Solution
The fourth proportional to 268,121,783,349.60, 402,223,999,877.60 and 91,416,715,513.44 is: 137,139,163,070.33
Step by Step Solution
- Step 1: Write the proportion equation
268,121,783,349.60 : 402,223,999,877.60 = 91,416,715,513.44 : x - Step 2: Convert to fraction form
268,121,783,349.60/402,223,999,877.60 = 91,416,715,513.44/x - Step 3: Cross multiply
268,121,783,349.60x = 402,223,999,877.60 × 91,416,715,513.44 - Step 4: Simplify right side
268,121,783,349.60x = 36,769,996,969,488,481,779,712 - Step 5: Solve for x
x = 36,769,996,969,488,481,779,712/268,121,783,349.60 - Step 6: Final answer
x = 137,139,163,070.33
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1.5x scale
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.