Finding the Fourth Proportional to 9,782,417.60, 14,689,372.80 and 7,388,964.80
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Solution
The fourth proportional to 9,782,417.60, 14,689,372.80 and 7,388,964.80 is: 11,095,340.95
Step by Step Solution
- Step 1: Write the proportion equation
9,782,417.60 : 14,689,372.80 = 7,388,964.80 : x - Step 2: Convert to fraction form
9,782,417.60/14,689,372.80 = 7,388,964.80/x - Step 3: Cross multiply
9,782,417.60x = 14,689,372.80 × 7,388,964.80 - Step 4: Simplify right side
9,782,417.60x = 108,539,258,553,277.44 - Step 5: Solve for x
x = 108,539,258,553,277.44/9,782,417.60 - Step 6: Final answer
x = 11,095,340.95
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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.