Finding the Fourth Proportional to 18,944,053.20, 28,416,079.80 and 6,974,312.40
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Solution
The fourth proportional to 18,944,053.20, 28,416,079.80 and 6,974,312.40 is: 10,461,468.60
Step by Step Solution
- Step 1: Write the proportion equation
18,944,053.20 : 28,416,079.80 = 6,974,312.40 : x - Step 2: Convert to fraction form
18,944,053.20/28,416,079.80 = 6,974,312.40/x - Step 3: Cross multiply
18,944,053.20x = 28,416,079.80 × 6,974,312.40 - Step 4: Simplify right side
18,944,053.20x = 198,182,617,708,529.53 - Step 5: Solve for x
x = 198,182,617,708,529.53/18,944,053.20 - Step 6: Final answer
x = 10,461,468.60
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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.