Finding the Fourth Proportional to 153,285,816.76, 229,931,990.42 and 54,923,946.68
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Solution
The fourth proportional to 153,285,816.76, 229,931,990.42 and 54,923,946.68 is: 82,387,090.00
Step by Step Solution
- Step 1: Write the proportion equation
153,285,816.76 : 229,931,990.42 = 54,923,946.68 : x - Step 2: Convert to fraction form
153,285,816.76/229,931,990.42 = 54,923,946.68/x - Step 3: Cross multiply
153,285,816.76x = 229,931,990.42 × 54,923,946.68 - Step 4: Simplify right side
153,285,816.76x = 12,628,772,381,854,350 - Step 5: Solve for x
x = 12,628,772,381,854,350/153,285,816.76 - Step 6: Final answer
x = 82,387,090.00
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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.