Finding the Fourth Proportional to 626,472,792.99, 939,124,998.50 and 211,659,518.90
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Solution
The fourth proportional to 626,472,792.99, 939,124,998.50 and 211,659,518.90 is: 317,291,904.12
Step by Step Solution
- Step 1: Write the proportion equation
626,472,792.99 : 939,124,998.50 = 211,659,518.90 : x - Step 2: Convert to fraction form
626,472,792.99/939,124,998.50 = 211,659,518.90/x - Step 3: Cross multiply
626,472,792.99x = 939,124,998.50 × 211,659,518.90 - Step 4: Simplify right side
626,472,792.99x = 198,774,745,366,783,840 - Step 5: Solve for x
x = 198,774,745,366,783,840/626,472,792.99 - Step 6: Final answer
x = 317,291,904.12
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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.