Finding the Fourth Proportional to 77,772,028.80, 107,327,565.37 and 42,966,961.26
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Solution
The fourth proportional to 77,772,028.80, 107,327,565.37 and 42,966,961.26 is: 59,295,602.99
Step by Step Solution
- Step 1: Write the proportion equation
77,772,028.80 : 107,327,565.37 = 42,966,961.26 : x - Step 2: Convert to fraction form
77,772,028.80/107,327,565.37 = 42,966,961.26/x - Step 3: Cross multiply
77,772,028.80x = 107,327,565.37 × 42,966,961.26 - Step 4: Simplify right side
77,772,028.80x = 4,611,539,343,637,856 - Step 5: Solve for x
x = 4,611,539,343,637,856/77,772,028.80 - Step 6: Final answer
x = 59,295,602.99
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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.