Finding the Fourth Proportional to 319,035,772.70, 478,553,659.05 and 273,119,270.30
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Solution
The fourth proportional to 319,035,772.70, 478,553,659.05 and 273,119,270.30 is: 409,678,905.45
Step by Step Solution
- Step 1: Write the proportion equation
319,035,772.70 : 478,553,659.05 = 273,119,270.30 : x - Step 2: Convert to fraction form
319,035,772.70/478,553,659.05 = 273,119,270.30/x - Step 3: Cross multiply
319,035,772.70x = 478,553,659.05 × 273,119,270.30 - Step 4: Simplify right side
319,035,772.70x = 130,702,226,159,131,008 - Step 5: Solve for x
x = 130,702,226,159,131,008/319,035,772.70 - Step 6: Final answer
x = 409,678,905.45
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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.