Finding the Fourth Proportional to 166,219,990.12, 249,329,987.34 and 45,051,442.12
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Solution
The fourth proportional to 166,219,990.12, 249,329,987.34 and 45,051,442.12 is: 67,577,163.77
Step by Step Solution
- Step 1: Write the proportion equation
166,219,990.12 : 249,329,987.34 = 45,051,442.12 : x - Step 2: Convert to fraction form
166,219,990.12/249,329,987.34 = 45,051,442.12/x - Step 3: Cross multiply
166,219,990.12x = 249,329,987.34 × 45,051,442.12 - Step 4: Simplify right side
166,219,990.12x = 11,232,675,493,428,342 - Step 5: Solve for x
x = 11,232,675,493,428,342/166,219,990.12 - Step 6: Final answer
x = 67,577,163.77
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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.