Finding the Fourth Proportional to 155,394,415.80, 233,091,623.70 and 74,772,847.80
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Solution
The fourth proportional to 155,394,415.80, 233,091,623.70 and 74,772,847.80 is: 112,159,271.70
Step by Step Solution
- Step 1: Write the proportion equation
155,394,415.80 : 233,091,623.70 = 74,772,847.80 : x - Step 2: Convert to fraction form
155,394,415.80/233,091,623.70 = 74,772,847.80/x - Step 3: Cross multiply
155,394,415.80x = 233,091,623.70 × 74,772,847.80 - Step 4: Simplify right side
155,394,415.80x = 17,428,924,502,374,972 - Step 5: Solve for x
x = 17,428,924,502,374,972/155,394,415.80 - Step 6: Final answer
x = 112,159,271.70
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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.