Finding the Fourth Proportional to 219,390,729.51, 328,990,422.87 and 82,980,453.63
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Solution
The fourth proportional to 219,390,729.51, 328,990,422.87 and 82,980,453.63 is: 124,434,494.52
Step by Step Solution
- Step 1: Write the proportion equation
219,390,729.51 : 328,990,422.87 = 82,980,453.63 : x - Step 2: Convert to fraction form
219,390,729.51/328,990,422.87 = 82,980,453.63/x - Step 3: Cross multiply
219,390,729.51x = 328,990,422.87 × 82,980,453.63 - Step 4: Simplify right side
219,390,729.51x = 27,299,774,529,678,124 - Step 5: Solve for x
x = 27,299,774,529,678,124/219,390,729.51 - Step 6: Final answer
x = 124,434,494.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.