Finding the Fourth Proportional to 5,281,567,999.20, 7,922,351,998.80 and 2,832,687,871.20
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Solution
The fourth proportional to 5,281,567,999.20, 7,922,351,998.80 and 2,832,687,871.20 is: 4,249,031,806.80
Step by Step Solution
- Step 1: Write the proportion equation
5,281,567,999.20 : 7,922,351,998.80 = 2,832,687,871.20 : x - Step 2: Convert to fraction form
5,281,567,999.20/7,922,351,998.80 = 2,832,687,871.20/x - Step 3: Cross multiply
5,281,567,999.20x = 7,922,351,998.80 × 2,832,687,871.20 - Step 4: Simplify right side
5,281,567,999.20x = 22,441,550,418,377,834,496 - Step 5: Solve for x
x = 22,441,550,418,377,834,496/5,281,567,999.20 - Step 6: Final answer
x = 4,249,031,806.80
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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.