Finding the Fourth Proportional to 1,063,125,516.30, 1,594,688,274.45 and 286,769,676.30
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Solution
The fourth proportional to 1,063,125,516.30, 1,594,688,274.45 and 286,769,676.30 is: 430,154,514.45
Step by Step Solution
- Step 1: Write the proportion equation
1,063,125,516.30 : 1,594,688,274.45 = 286,769,676.30 : x - Step 2: Convert to fraction form
1,063,125,516.30/1,594,688,274.45 = 286,769,676.30/x - Step 3: Cross multiply
1,063,125,516.30x = 1,594,688,274.45 × 286,769,676.30 - Step 4: Simplify right side
1,063,125,516.30x = 457,308,240,263,432,064 - Step 5: Solve for x
x = 457,308,240,263,432,064/1,063,125,516.30 - Step 6: Final answer
x = 430,154,514.45
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Double scale
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Similar ratio
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1.5x scale
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.