Finding the Fourth Proportional to 19,680,454.80, 29,524,829.40 and 8,315,053.20
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Solution
The fourth proportional to 19,680,454.80, 29,524,829.40 and 8,315,053.20 is: 12,474,332.00
Step by Step Solution
- Step 1: Write the proportion equation
19,680,454.80 : 29,524,829.40 = 8,315,053.20 : x - Step 2: Convert to fraction form
19,680,454.80/29,524,829.40 = 8,315,053.20/x - Step 3: Cross multiply
19,680,454.80x = 29,524,829.40 × 8,315,053.20 - Step 4: Simplify right side
19,680,454.80x = 245,500,527,181,924.06 - Step 5: Solve for x
x = 245,500,527,181,924.06/19,680,454.80 - Step 6: Final answer
x = 12,474,332.00
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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.