Finding the Fourth Proportional to 153,312,277.20, 229,968,415.80 and 123,079,189.20
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Solution
The fourth proportional to 153,312,277.20, 229,968,415.80 and 123,079,189.20 is: 184,618,783.80
Step by Step Solution
- Step 1: Write the proportion equation
153,312,277.20 : 229,968,415.80 = 123,079,189.20 : x - Step 2: Convert to fraction form
153,312,277.20/229,968,415.80 = 123,079,189.20/x - Step 3: Cross multiply
153,312,277.20x = 229,968,415.80 × 123,079,189.20 - Step 4: Simplify right side
153,312,277.20x = 28,304,326,158,272,472 - Step 5: Solve for x
x = 28,304,326,158,272,472/153,312,277.20 - Step 6: Final answer
x = 184,618,783.80
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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.