Finding the Fourth Proportional to 220,063,323.80, 330,094,985.70 and 118,026,651.80
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Solution
The fourth proportional to 220,063,323.80, 330,094,985.70 and 118,026,651.80 is: 177,039,977.70
Step by Step Solution
- Step 1: Write the proportion equation
220,063,323.80 : 330,094,985.70 = 118,026,651.80 : x - Step 2: Convert to fraction form
220,063,323.80/330,094,985.70 = 118,026,651.80/x - Step 3: Cross multiply
220,063,323.80x = 330,094,985.70 × 118,026,651.80 - Step 4: Simplify right side
220,063,323.80x = 38,960,005,938,139,880 - Step 5: Solve for x
x = 38,960,005,938,139,880/220,063,323.80 - Step 6: Final answer
x = 177,039,977.70
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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.