Finding the Fourth Proportional to 1,240,483,197.60, 1,711,878,291.90 and 683,586,173.16
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Solution
The fourth proportional to 1,240,483,197.60, 1,711,878,291.90 and 683,586,173.16 is: 943,355,244.75
Step by Step Solution
- Step 1: Write the proportion equation
1,240,483,197.60 : 1,711,878,291.90 = 683,586,173.16 : x - Step 2: Convert to fraction form
1,240,483,197.60/1,711,878,291.90 = 683,586,173.16/x - Step 3: Cross multiply
1,240,483,197.60x = 1,711,878,291.90 × 683,586,173.16 - Step 4: Simplify right side
1,240,483,197.60x = 1,170,216,330,475,598,336 - Step 5: Solve for x
x = 1,170,216,330,475,598,336/1,240,483,197.60 - Step 6: Final answer
x = 943,355,244.75
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1.5x scale
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.