Finding the Fourth Proportional to 1,153,522,349.76, 1,591,854,028.56 and 624,896,410.08
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Solution
The fourth proportional to 1,153,522,349.76, 1,591,854,028.56 and 624,896,410.08 is: 862,353,354.51
Step by Step Solution
- Step 1: Write the proportion equation
1,153,522,349.76 : 1,591,854,028.56 = 624,896,410.08 : x - Step 2: Convert to fraction form
1,153,522,349.76/1,591,854,028.56 = 624,896,410.08/x - Step 3: Cross multiply
1,153,522,349.76x = 1,591,854,028.56 × 624,896,410.08 - Step 4: Simplify right side
1,153,522,349.76x = 994,743,867,818,529,792 - Step 5: Solve for x
x = 994,743,867,818,529,792/1,153,522,349.76 - Step 6: Final answer
x = 862,353,354.51
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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.