Finding the Fourth Proportional to 81,368,773,563.49, 112,295,197,349.80 and 48,817,212,235.31
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Solution
The fourth proportional to 81,368,773,563.49, 112,295,197,349.80 and 48,817,212,235.31 is: 67,371,526,470.82
Step by Step Solution
- Step 1: Write the proportion equation
81,368,773,563.49 : 112,295,197,349.80 = 48,817,212,235.31 : x - Step 2: Convert to fraction form
81,368,773,563.49/112,295,197,349.80 = 48,817,212,235.31/x - Step 3: Cross multiply
81,368,773,563.49x = 112,295,197,349.80 × 48,817,212,235.31 - Step 4: Simplify right side
81,368,773,563.49x = 5,481,938,482,030,758,068,224 - Step 5: Solve for x
x = 5,481,938,482,030,758,068,224/81,368,773,563.49 - Step 6: Final answer
x = 67,371,526,470.82
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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.