Finding the Fourth Proportional to 8,942,390,405.89, 12,340,139,473.67 and 4,873,205,702.99
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Solution
The fourth proportional to 8,942,390,405.89, 12,340,139,473.67 and 4,873,205,702.99 is: 6,724,828,074.96
Step by Step Solution
- Step 1: Write the proportion equation
8,942,390,405.89 : 12,340,139,473.67 = 4,873,205,702.99 : x - Step 2: Convert to fraction form
8,942,390,405.89/12,340,139,473.67 = 4,873,205,702.99/x - Step 3: Cross multiply
8,942,390,405.89x = 12,340,139,473.67 × 4,873,205,702.99 - Step 4: Simplify right side
8,942,390,405.89x = 60,136,038,058,787,151,872 - Step 5: Solve for x
x = 60,136,038,058,787,151,872/8,942,390,405.89 - Step 6: Final answer
x = 6,724,828,074.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.