Finding the Fourth Proportional to 1,153,522,351.76, 1,591,854,031.32 and 624,896,412.08
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Solution
The fourth proportional to 1,153,522,351.76, 1,591,854,031.32 and 624,896,412.08 is: 862,353,357.27
Step by Step Solution
- Step 1: Write the proportion equation
1,153,522,351.76 : 1,591,854,031.32 = 624,896,412.08 : x - Step 2: Convert to fraction form
1,153,522,351.76/1,591,854,031.32 = 624,896,412.08/x - Step 3: Cross multiply
1,153,522,351.76x = 1,591,854,031.32 × 624,896,412.08 - Step 4: Simplify right side
1,153,522,351.76x = 994,743,872,726,951,936 - Step 5: Solve for x
x = 994,743,872,726,951,936/1,153,522,351.76 - Step 6: Final answer
x = 862,353,357.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.