Finding the Fourth Proportional to 117,416,447.20, 176,124,670.80 and 31,154,687.20
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Solution
The fourth proportional to 117,416,447.20, 176,124,670.80 and 31,154,687.20 is: 46,732,030.80
Step by Step Solution
- Step 1: Write the proportion equation
117,416,447.20 : 176,124,670.80 = 31,154,687.20 : x - Step 2: Convert to fraction form
117,416,447.20/176,124,670.80 = 31,154,687.20/x - Step 3: Cross multiply
117,416,447.20x = 176,124,670.80 × 31,154,687.20 - Step 4: Simplify right side
117,416,447.20x = 5,487,109,026,976,974 - Step 5: Solve for x
x = 5,487,109,026,976,974/117,416,447.20 - Step 6: Final answer
x = 46,732,030.80
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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.