Finding the Fourth Proportional to 1,345,211,407.20, 2,017,817,110.80 and 725,338,624.80
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Solution
The fourth proportional to 1,345,211,407.20, 2,017,817,110.80 and 725,338,624.80 is: 1,088,007,937.20
Step by Step Solution
- Step 1: Write the proportion equation
1,345,211,407.20 : 2,017,817,110.80 = 725,338,624.80 : x - Step 2: Convert to fraction form
1,345,211,407.20/2,017,817,110.80 = 725,338,624.80/x - Step 3: Cross multiply
1,345,211,407.20x = 2,017,817,110.80 × 725,338,624.80 - Step 4: Simplify right side
1,345,211,407.20x = 1,463,600,688,245,581,056 - Step 5: Solve for x
x = 1,463,600,688,245,581,056/1,345,211,407.20 - Step 6: Final answer
x = 1,088,007,937.20
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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.