Finding the Fourth Proportional to 7,402,497.40, 11,103,746.10 and 5,720,807.80
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Solution
The fourth proportional to 7,402,497.40, 11,103,746.10 and 5,720,807.80 is: 8,581,211.70
Step by Step Solution
- Step 1: Write the proportion equation
7,402,497.40 : 11,103,746.10 = 5,720,807.80 : x - Step 2: Convert to fraction form
7,402,497.40/11,103,746.10 = 5,720,807.80/x - Step 3: Cross multiply
7,402,497.40x = 11,103,746.10 × 5,720,807.80 - Step 4: Simplify right side
7,402,497.40x = 63,522,397,298,099.58 - Step 5: Solve for x
x = 63,522,397,298,099.58/7,402,497.40 - Step 6: Final answer
x = 8,581,211.70
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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.