Finding the Fourth Proportional to 25,624,615.80, 38,429,014.35 and 7,430,152.09
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Solution
The fourth proportional to 25,624,615.80, 38,429,014.35 and 7,430,152.09 is: 11,142,934.73
Step by Step Solution
- Step 1: Write the proportion equation
25,624,615.80 : 38,429,014.35 = 7,430,152.09 : x - Step 2: Convert to fraction form
25,624,615.80/38,429,014.35 = 7,430,152.09/x - Step 3: Cross multiply
25,624,615.80x = 38,429,014.35 × 7,430,152.09 - Step 4: Simplify right side
25,624,615.80x = 285,533,421,289,292.50 - Step 5: Solve for x
x = 285,533,421,289,292.50/25,624,615.80 - Step 6: Final answer
x = 11,142,934.73
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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.