Finding the Fourth Proportional to 25,390,437.80, 38,085,656.70 and 7,439,541.80
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Solution
The fourth proportional to 25,390,437.80, 38,085,656.70 and 7,439,541.80 is: 11,159,312.70
Step by Step Solution
- Step 1: Write the proportion equation
25,390,437.80 : 38,085,656.70 = 7,439,541.80 : x - Step 2: Convert to fraction form
25,390,437.80/38,085,656.70 = 7,439,541.80/x - Step 3: Cross multiply
25,390,437.80x = 38,085,656.70 × 7,439,541.80 - Step 4: Simplify right side
25,390,437.80x = 283,339,835,000,100.06 - Step 5: Solve for x
x = 283,339,835,000,100.06/25,390,437.80 - Step 6: Final answer
x = 11,159,312.70
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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.