Finding the Fourth Proportional to 99,852,807.40, 149,779,211.10 and 83,728,493.80
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Solution
The fourth proportional to 99,852,807.40, 149,779,211.10 and 83,728,493.80 is: 125,592,740.70
Step by Step Solution
- Step 1: Write the proportion equation
99,852,807.40 : 149,779,211.10 = 83,728,493.80 : x - Step 2: Convert to fraction form
99,852,807.40/149,779,211.10 = 83,728,493.80/x - Step 3: Cross multiply
99,852,807.40x = 149,779,211.10 × 83,728,493.80 - Step 4: Simplify right side
99,852,807.40x = 12,540,787,747,955,240 - Step 5: Solve for x
x = 12,540,787,747,955,240/99,852,807.40 - Step 6: Final answer
x = 125,592,740.70
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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.