Finding the Fourth Proportional to 1,155,861,585.60, 1,736,623,533.60 and 869,207,121.60
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Solution
The fourth proportional to 1,155,861,585.60, 1,736,623,533.60 and 869,207,121.60 is: 1,305,939,709.17
Step by Step Solution
- Step 1: Write the proportion equation
1,155,861,585.60 : 1,736,623,533.60 = 869,207,121.60 : x - Step 2: Convert to fraction form
1,155,861,585.60/1,736,623,533.60 = 869,207,121.60/x - Step 3: Cross multiply
1,155,861,585.60x = 1,736,623,533.60 × 869,207,121.60 - Step 4: Simplify right side
1,155,861,585.60x = 1,509,485,542,943,276,800 - Step 5: Solve for x
x = 1,509,485,542,943,276,800/1,155,861,585.60 - Step 6: Final answer
x = 1,305,939,709.17
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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.