Finding the Fourth Proportional to 9,415,157.84, 12,992,535.20 and 5,340,689.36
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Solution
The fourth proportional to 9,415,157.84, 12,992,535.20 and 5,340,689.36 is: 7,369,934.28
Step by Step Solution
- Step 1: Write the proportion equation
9,415,157.84 : 12,992,535.20 = 5,340,689.36 : x - Step 2: Convert to fraction form
9,415,157.84/12,992,535.20 = 5,340,689.36/x - Step 3: Cross multiply
9,415,157.84x = 12,992,535.20 × 5,340,689.36 - Step 4: Simplify right side
9,415,157.84x = 69,389,094,502,065.47 - Step 5: Solve for x
x = 69,389,094,502,065.47/9,415,157.84 - Step 6: Final answer
x = 7,369,934.28
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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.