Finding the Fourth Proportional to 1,535,903,161.39, 2,118,765,507.46 and 932,913,324.55
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Solution
The fourth proportional to 1,535,903,161.39, 2,118,765,507.46 and 932,913,324.55 is: 1,286,946,093.47
Step by Step Solution
- Step 1: Write the proportion equation
1,535,903,161.39 : 2,118,765,507.46 = 932,913,324.55 : x - Step 2: Convert to fraction form
1,535,903,161.39/2,118,765,507.46 = 932,913,324.55/x - Step 3: Cross multiply
1,535,903,161.39x = 2,118,765,507.46 × 932,913,324.55 - Step 4: Simplify right side
1,535,903,161.39x = 1,976,624,573,506,376,448 - Step 5: Solve for x
x = 1,976,624,573,506,376,448/1,535,903,161.39 - Step 6: Final answer
x = 1,286,946,093.47
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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.