Finding the Fourth Proportional to 77,701,174.08, 107,224,809.60 and 42,893,116.80
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Solution
The fourth proportional to 77,701,174.08, 107,224,809.60 and 42,893,116.80 is: 59,190,949.64
Step by Step Solution
- Step 1: Write the proportion equation
77,701,174.08 : 107,224,809.60 = 42,893,116.80 : x - Step 2: Convert to fraction form
77,701,174.08/107,224,809.60 = 42,893,116.80/x - Step 3: Cross multiply
77,701,174.08x = 107,224,809.60 × 42,893,116.80 - Step 4: Simplify right side
77,701,174.08x = 4,599,206,282,030,561 - Step 5: Solve for x
x = 4,599,206,282,030,561/77,701,174.08 - Step 6: Final answer
x = 59,190,949.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.