Finding the Fourth Proportional to 944,785,803.60, 1,417,178,705.40 and 858,692,361.60
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Solution
The fourth proportional to 944,785,803.60, 1,417,178,705.40 and 858,692,361.60 is: 1,288,038,542.40
Step by Step Solution
- Step 1: Write the proportion equation
944,785,803.60 : 1,417,178,705.40 = 858,692,361.60 : x - Step 2: Convert to fraction form
944,785,803.60/1,417,178,705.40 = 858,692,361.60/x - Step 3: Cross multiply
944,785,803.60x = 1,417,178,705.40 × 858,692,361.60 - Step 4: Simplify right side
944,785,803.60x = 1,216,920,529,349,156,864 - Step 5: Solve for x
x = 1,216,920,529,349,156,864/944,785,803.60 - Step 6: Final answer
x = 1,288,038,542.40
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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.