Finding the Fourth Proportional to 319,035,817.20, 478,553,725.80 and 273,119,314.80
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Solution
The fourth proportional to 319,035,817.20, 478,553,725.80 and 273,119,314.80 is: 409,678,972.20
Step by Step Solution
- Step 1: Write the proportion equation
319,035,817.20 : 478,553,725.80 = 273,119,314.80 : x - Step 2: Convert to fraction form
319,035,817.20/478,553,725.80 = 273,119,314.80/x - Step 3: Cross multiply
319,035,817.20x = 478,553,725.80 × 273,119,314.80 - Step 4: Simplify right side
319,035,817.20x = 130,702,265,685,483,088 - Step 5: Solve for x
x = 130,702,265,685,483,088/319,035,817.20 - Step 6: Final answer
x = 409,678,972.20
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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.