Finding the Fourth Proportional to 5,386,437.12, 7,433,308.80 and 2,971,989.12
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Solution
The fourth proportional to 5,386,437.12, 7,433,308.80 and 2,971,989.12 is: 4,101,359.10
Step by Step Solution
- Step 1: Write the proportion equation
5,386,437.12 : 7,433,308.80 = 2,971,989.12 : x - Step 2: Convert to fraction form
5,386,437.12/7,433,308.80 = 2,971,989.12/x - Step 3: Cross multiply
5,386,437.12x = 7,433,308.80 × 2,971,989.12 - Step 4: Simplify right side
5,386,437.12x = 22,091,712,879,200.26 - Step 5: Solve for x
x = 22,091,712,879,200.26/5,386,437.12 - Step 6: Final answer
x = 4,101,359.10
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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.