Finding the Fourth Proportional to 292,473,703.53, 438,710,528.65 and 128,711,460.03
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Solution
The fourth proportional to 292,473,703.53, 438,710,528.65 and 128,711,460.03 is: 193,067,178.32
Step by Step Solution
- Step 1: Write the proportion equation
292,473,703.53 : 438,710,528.65 = 128,711,460.03 : x - Step 2: Convert to fraction form
292,473,703.53/438,710,528.65 = 128,711,460.03/x - Step 3: Cross multiply
292,473,703.53x = 438,710,528.65 × 128,711,460.03 - Step 4: Simplify right side
292,473,703.53x = 56,467,072,673,074,640 - Step 5: Solve for x
x = 56,467,072,673,074,640/292,473,703.53 - Step 6: Final answer
x = 193,067,178.32
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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.