Finding the Fourth Proportional to 1,155,468,096.09, 1,594,411,449.84 and 646,858,660.05
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Solution
The fourth proportional to 1,155,468,096.09, 1,594,411,449.84 and 646,858,660.05 is: 892,589,641.81
Step by Step Solution
- Step 1: Write the proportion equation
1,155,468,096.09 : 1,594,411,449.84 = 646,858,660.05 : x - Step 2: Convert to fraction form
1,155,468,096.09/1,594,411,449.84 = 646,858,660.05/x - Step 3: Cross multiply
1,155,468,096.09x = 1,594,411,449.84 × 646,858,660.05 - Step 4: Simplify right side
1,155,468,096.09x = 1,031,358,854,011,880,064 - Step 5: Solve for x
x = 1,031,358,854,011,880,064/1,155,468,096.09 - Step 6: Final answer
x = 892,589,641.81
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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.