Finding the Fourth Proportional to 19,423,078.80, 29,134,618.20 and 6,639,334.80
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Solution
The fourth proportional to 19,423,078.80, 29,134,618.20 and 6,639,334.80 is: 9,959,002.20
Step by Step Solution
- Step 1: Write the proportion equation
19,423,078.80 : 29,134,618.20 = 6,639,334.80 : x - Step 2: Convert to fraction form
19,423,078.80/29,134,618.20 = 6,639,334.80/x - Step 3: Cross multiply
19,423,078.80x = 29,134,618.20 × 6,639,334.80 - Step 4: Simplify right side
19,423,078.80x = 193,434,484,499,973.34 - Step 5: Solve for x
x = 193,434,484,499,973.34/19,423,078.80 - Step 6: Final answer
x = 9,959,002.20
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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.