Finding the Fourth Proportional to 266,088,989.76, 399,134,467.20 and 81,855,189.12
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Solution
The fourth proportional to 266,088,989.76, 399,134,467.20 and 81,855,189.12 is: 122,783,085.94
Step by Step Solution
- Step 1: Write the proportion equation
266,088,989.76 : 399,134,467.20 = 81,855,189.12 : x - Step 2: Convert to fraction form
266,088,989.76/399,134,467.20 = 81,855,189.12/x - Step 3: Cross multiply
266,088,989.76x = 399,134,467.20 × 81,855,189.12 - Step 4: Simplify right side
266,088,989.76x = 32,671,227,296,966,436 - Step 5: Solve for x
x = 32,671,227,296,966,436/266,088,989.76 - Step 6: Final answer
x = 122,783,085.94
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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.