Finding the Fourth Proportional to 77,526,273.44, 106,988,539.48 and 42,721,205.96
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Solution
The fourth proportional to 77,526,273.44, 106,988,539.48 and 42,721,205.96 is: 58,956,521.80
Step by Step Solution
- Step 1: Write the proportion equation
77,526,273.44 : 106,988,539.48 = 42,721,205.96 : x - Step 2: Convert to fraction form
77,526,273.44/106,988,539.48 = 42,721,205.96/x - Step 3: Cross multiply
77,526,273.44x = 106,988,539.48 × 42,721,205.96 - Step 4: Simplify right side
77,526,273.44x = 4,570,679,429,842,926 - Step 5: Solve for x
x = 4,570,679,429,842,926/77,526,273.44 - Step 6: Final answer
x = 58,956,521.80
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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.