Finding the Fourth Proportional to 98,438,876.72, 135,847,075.35 and 54,386,888.72
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Solution
The fourth proportional to 98,438,876.72, 135,847,075.35 and 54,386,888.72 is: 75,054,694.00
Step by Step Solution
- Step 1: Write the proportion equation
98,438,876.72 : 135,847,075.35 = 54,386,888.72 : x - Step 2: Convert to fraction form
98,438,876.72/135,847,075.35 = 54,386,888.72/x - Step 3: Cross multiply
98,438,876.72x = 135,847,075.35 × 54,386,888.72 - Step 4: Simplify right side
98,438,876.72x = 7,388,299,769,997,905 - Step 5: Solve for x
x = 7,388,299,769,997,905/98,438,876.72 - Step 6: Final answer
x = 75,054,694.00
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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.