Finding the Fourth Proportional to 4,989,854.04, 6,885,989.12 and 2,814,390.60
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Solution
The fourth proportional to 4,989,854.04, 6,885,989.12 and 2,814,390.60 is: 3,883,853.70
Step by Step Solution
- Step 1: Write the proportion equation
4,989,854.04 : 6,885,989.12 = 2,814,390.60 : x - Step 2: Convert to fraction form
4,989,854.04/6,885,989.12 = 2,814,390.60/x - Step 3: Cross multiply
4,989,854.04x = 6,885,989.12 × 2,814,390.60 - Step 4: Simplify right side
4,989,854.04x = 19,379,863,051,030.27 - Step 5: Solve for x
x = 19,379,863,051,030.27/4,989,854.04 - Step 6: Final answer
x = 3,883,853.70
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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.