Finding the Fourth Proportional to 7,129,109.70, 10,692,352.35 and 4,428,602.10
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Solution
The fourth proportional to 7,129,109.70, 10,692,352.35 and 4,428,602.10 is: 6,642,088.01
Step by Step Solution
- Step 1: Write the proportion equation
7,129,109.70 : 10,692,352.35 = 4,428,602.10 : x - Step 2: Convert to fraction form
7,129,109.70/10,692,352.35 = 4,428,602.10/x - Step 3: Cross multiply
7,129,109.70x = 10,692,352.35 × 4,428,602.10 - Step 4: Simplify right side
7,129,109.70x = 47,352,174,071,149.93 - Step 5: Solve for x
x = 47,352,174,071,149.93/7,129,109.70 - Step 6: Final answer
x = 6,642,088.01
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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.