Finding the Fourth Proportional to 7,138,434.06, 10,685,062.35 and 4,576,225.05
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Solution
The fourth proportional to 7,138,434.06, 10,685,062.35 and 4,576,225.05 is: 6,849,856.65
Step by Step Solution
- Step 1: Write the proportion equation
7,138,434.06 : 10,685,062.35 = 4,576,225.05 : x - Step 2: Convert to fraction form
7,138,434.06/10,685,062.35 = 4,576,225.05/x - Step 3: Cross multiply
7,138,434.06x = 10,685,062.35 × 4,576,225.05 - Step 4: Simplify right side
7,138,434.06x = 48,897,249,986,881.87 - Step 5: Solve for x
x = 48,897,249,986,881.87/7,138,434.06 - Step 6: Final answer
x = 6,849,856.65
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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.