Finding the Fourth Proportional to 1,336,645,354.20, 2,004,968,031.30 and 1,221,759,619.80
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Solution
The fourth proportional to 1,336,645,354.20, 2,004,968,031.30 and 1,221,759,619.80 is: 1,832,639,429.70
Step by Step Solution
- Step 1: Write the proportion equation
1,336,645,354.20 : 2,004,968,031.30 = 1,221,759,619.80 : x - Step 2: Convert to fraction form
1,336,645,354.20/2,004,968,031.30 = 1,221,759,619.80/x - Step 3: Cross multiply
1,336,645,354.20x = 2,004,968,031.30 × 1,221,759,619.80 - Step 4: Simplify right side
1,336,645,354.20x = 2,449,588,979,632,242,176 - Step 5: Solve for x
x = 2,449,588,979,632,242,176/1,336,645,354.20 - Step 6: Final answer
x = 1,832,639,429.70
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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.