Finding the Fourth Proportional to 66,421,835.79, 99,629,210.74 and 17,898,910.53
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Solution
The fourth proportional to 66,421,835.79, 99,629,210.74 and 17,898,910.53 is: 26,847,411.07
Step by Step Solution
- Step 1: Write the proportion equation
66,421,835.79 : 99,629,210.74 = 17,898,910.53 : x - Step 2: Convert to fraction form
66,421,835.79/99,629,210.74 = 17,898,910.53/x - Step 3: Cross multiply
66,421,835.79x = 99,629,210.74 × 17,898,910.53 - Step 4: Simplify right side
66,421,835.79x = 1,783,254,329,209,775 - Step 5: Solve for x
x = 1,783,254,329,209,775/66,421,835.79 - Step 6: Final answer
x = 26,847,411.07
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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.