Finding the Fourth Proportional to 6,174,209.40, 9,271,811.70 and 4,578,574.20
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Solution
The fourth proportional to 6,174,209.40, 9,271,811.70 and 4,578,574.20 is: 6,875,645.95
Step by Step Solution
- Step 1: Write the proportion equation
6,174,209.40 : 9,271,811.70 = 4,578,574.20 : x - Step 2: Convert to fraction form
6,174,209.40/9,271,811.70 = 4,578,574.20/x - Step 3: Cross multiply
6,174,209.40x = 9,271,811.70 × 4,578,574.20 - Step 4: Simplify right side
6,174,209.40x = 42,451,677,836,878.14 - Step 5: Solve for x
x = 42,451,677,836,878.14/6,174,209.40 - Step 6: Final answer
x = 6,875,645.95
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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.