Finding the Fourth Proportional to 3,120,828,208.80, 4,681,242,313.20 and 2,835,125,527.20
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Solution
The fourth proportional to 3,120,828,208.80, 4,681,242,313.20 and 2,835,125,527.20 is: 4,252,688,290.80
Step by Step Solution
- Step 1: Write the proportion equation
3,120,828,208.80 : 4,681,242,313.20 = 2,835,125,527.20 : x - Step 2: Convert to fraction form
3,120,828,208.80/4,681,242,313.20 = 2,835,125,527.20/x - Step 3: Cross multiply
3,120,828,208.80x = 4,681,242,313.20 × 2,835,125,527.20 - Step 4: Simplify right side
3,120,828,208.80x = 13,271,909,581,162,096,640 - Step 5: Solve for x
x = 13,271,909,581,162,096,640/3,120,828,208.80 - Step 6: Final answer
x = 4,252,688,290.80
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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.