Finding the Fourth Proportional to 122,738,490,146.63, 169,354,550,915.71 and 68,536,699,038.13
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Solution
The fourth proportional to 122,738,490,146.63, 169,354,550,915.71 and 68,536,699,038.13 is: 94,566,927,399.72
Step by Step Solution
- Step 1: Write the proportion equation
122,738,490,146.63 : 169,354,550,915.71 = 68,536,699,038.13 : x - Step 2: Convert to fraction form
122,738,490,146.63/169,354,550,915.71 = 68,536,699,038.13/x - Step 3: Cross multiply
122,738,490,146.63x = 169,354,550,915.71 × 68,536,699,038.13 - Step 4: Simplify right side
122,738,490,146.63x = 11,607,001,886,847,678,808,064 - Step 5: Solve for x
x = 11,607,001,886,847,678,808,064/122,738,490,146.63 - Step 6: Final answer
x = 94,566,927,399.72
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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.