Finding the Fourth Proportional to 1,245,765,350.96, 1,868,833,836.06 and 458,758,491.08
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Solution
The fourth proportional to 1,245,765,350.96, 1,868,833,836.06 and 458,758,491.08 is: 688,206,161.82
Step by Step Solution
- Step 1: Write the proportion equation
1,245,765,350.96 : 1,868,833,836.06 = 458,758,491.08 : x - Step 2: Convert to fraction form
1,245,765,350.96/1,868,833,836.06 = 458,758,491.08/x - Step 3: Cross multiply
1,245,765,350.96x = 1,868,833,836.06 × 458,758,491.08 - Step 4: Simplify right side
1,245,765,350.96x = 857,343,390,710,133,632 - Step 5: Solve for x
x = 857,343,390,710,133,632/1,245,765,350.96 - Step 6: Final answer
x = 688,206,161.82
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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.