Finding the Fourth Proportional to 1,594,688,432.70, 2,392,032,649.05 and 430,154,672.70
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Solution
The fourth proportional to 1,594,688,432.70, 2,392,032,649.05 and 430,154,672.70 is: 645,232,009.05
Step by Step Solution
- Step 1: Write the proportion equation
1,594,688,432.70 : 2,392,032,649.05 = 430,154,672.70 : x - Step 2: Convert to fraction form
1,594,688,432.70/2,392,032,649.05 = 430,154,672.70/x - Step 3: Cross multiply
1,594,688,432.70x = 2,392,032,649.05 × 430,154,672.70 - Step 4: Simplify right side
1,594,688,432.70x = 1,028,944,021,239,816,832 - Step 5: Solve for x
x = 1,028,944,021,239,816,832/1,594,688,432.70 - Step 6: Final answer
x = 645,232,009.05
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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.