Finding the Fourth Proportional to 178,767,642.80, 268,151,464.20 and 97,138,305.20
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Solution
The fourth proportional to 178,767,642.80, 268,151,464.20 and 97,138,305.20 is: 145,707,457.80
Step by Step Solution
- Step 1: Write the proportion equation
178,767,642.80 : 268,151,464.20 = 97,138,305.20 : x - Step 2: Convert to fraction form
178,767,642.80/268,151,464.20 = 97,138,305.20/x - Step 3: Cross multiply
178,767,642.80x = 268,151,464.20 × 97,138,305.20 - Step 4: Simplify right side
178,767,642.80x = 26,047,778,769,286,472 - Step 5: Solve for x
x = 26,047,778,769,286,472/178,767,642.80 - Step 6: Final answer
x = 145,707,457.80
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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.