Finding the Fourth Proportional to 291,357,497.80, 437,036,246.70 and 289,656,886.60
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Solution
The fourth proportional to 291,357,497.80, 437,036,246.70 and 289,656,886.60 is: 434,485,329.90
Step by Step Solution
- Step 1: Write the proportion equation
291,357,497.80 : 437,036,246.70 = 289,656,886.60 : x - Step 2: Convert to fraction form
291,357,497.80/437,036,246.70 = 289,656,886.60/x - Step 3: Cross multiply
291,357,497.80x = 437,036,246.70 × 289,656,886.60 - Step 4: Simplify right side
291,357,497.80x = 126,590,558,550,471,536 - Step 5: Solve for x
x = 126,590,558,550,471,536/291,357,497.80 - Step 6: Final answer
x = 434,485,329.90
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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.