Finding the Fourth Proportional to 397,818,288.12, 549,005,777.58 and 221,606,235.48
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Solution
The fourth proportional to 397,818,288.12, 549,005,777.58 and 221,606,235.48 is: 305,825,818.62
Step by Step Solution
- Step 1: Write the proportion equation
397,818,288.12 : 549,005,777.58 = 221,606,235.48 : x - Step 2: Convert to fraction form
397,818,288.12/549,005,777.58 = 221,606,235.48/x - Step 3: Cross multiply
397,818,288.12x = 549,005,777.58 × 221,606,235.48 - Step 4: Simplify right side
397,818,288.12x = 121,663,103,626,273,984 - Step 5: Solve for x
x = 121,663,103,626,273,984/397,818,288.12 - Step 6: Final answer
x = 305,825,818.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.