Finding the Fourth Proportional to 3,219,264,403.40, 4,828,896,605.10 and 3,188,653,401.80
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Solution
The fourth proportional to 3,219,264,403.40, 4,828,896,605.10 and 3,188,653,401.80 is: 4,782,980,102.70
Step by Step Solution
- Step 1: Write the proportion equation
3,219,264,403.40 : 4,828,896,605.10 = 3,188,653,401.80 : x - Step 2: Convert to fraction form
3,219,264,403.40/4,828,896,605.10 = 3,188,653,401.80/x - Step 3: Cross multiply
3,219,264,403.40x = 4,828,896,605.10 × 3,188,653,401.80 - Step 4: Simplify right side
3,219,264,403.40x = 15,397,677,586,792,589,312 - Step 5: Solve for x
x = 15,397,677,586,792,589,312/3,219,264,403.40 - Step 6: Final answer
x = 4,782,980,102.70
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1.5x scale
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.