Finding the Fourth Proportional to 319,035,878.70, 478,553,818.05 and 273,119,376.30
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Solution
The fourth proportional to 319,035,878.70, 478,553,818.05 and 273,119,376.30 is: 409,679,064.45
Step by Step Solution
- Step 1: Write the proportion equation
319,035,878.70 : 478,553,818.05 = 273,119,376.30 : x - Step 2: Convert to fraction form
319,035,878.70/478,553,818.05 = 273,119,376.30/x - Step 3: Cross multiply
319,035,878.70x = 478,553,818.05 × 273,119,376.30 - Step 4: Simplify right side
319,035,878.70x = 130,702,320,311,799,696 - Step 5: Solve for x
x = 130,702,320,311,799,696/319,035,878.70 - Step 6: Final answer
x = 409,679,064.45
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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.