Finding the Fourth Proportional to 4,854,168,421.60, 7,281,252,632.40 and 2,790,256,280.80
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Solution
The fourth proportional to 4,854,168,421.60, 7,281,252,632.40 and 2,790,256,280.80 is: 4,185,384,421.20
Step by Step Solution
- Step 1: Write the proportion equation
4,854,168,421.60 : 7,281,252,632.40 = 2,790,256,280.80 : x - Step 2: Convert to fraction form
4,854,168,421.60/7,281,252,632.40 = 2,790,256,280.80/x - Step 3: Cross multiply
4,854,168,421.60x = 7,281,252,632.40 × 2,790,256,280.80 - Step 4: Simplify right side
4,854,168,421.60x = 20,316,560,889,645,633,536 - Step 5: Solve for x
x = 20,316,560,889,645,633,536/4,854,168,421.60 - Step 6: Final answer
x = 4,185,384,421.20
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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.