Finding the Fourth Proportional to 70,860,124.80, 106,290,187.20 and 53,728,041.60
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Solution
The fourth proportional to 70,860,124.80, 106,290,187.20 and 53,728,041.60 is: 80,592,062.40
Step by Step Solution
- Step 1: Write the proportion equation
70,860,124.80 : 106,290,187.20 = 53,728,041.60 : x - Step 2: Convert to fraction form
70,860,124.80/106,290,187.20 = 53,728,041.60/x - Step 3: Cross multiply
70,860,124.80x = 106,290,187.20 × 53,728,041.60 - Step 4: Simplify right side
70,860,124.80x = 5,710,763,599,553,388 - Step 5: Solve for x
x = 5,710,763,599,553,388/70,860,124.80 - Step 6: Final answer
x = 80,592,062.40
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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.