Finding the Fourth Proportional to 130,496,277.28, 180,096,338.64 and 71,769,290.08
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Solution
The fourth proportional to 130,496,277.28, 180,096,338.64 and 71,769,290.08 is: 99,047,931.78
Step by Step Solution
- Step 1: Write the proportion equation
130,496,277.28 : 180,096,338.64 = 71,769,290.08 : x - Step 2: Convert to fraction form
130,496,277.28/180,096,338.64 = 71,769,290.08/x - Step 3: Cross multiply
130,496,277.28x = 180,096,338.64 × 71,769,290.08 - Step 4: Simplify right side
130,496,277.28x = 12,925,386,370,200,072 - Step 5: Solve for x
x = 12,925,386,370,200,072/130,496,277.28 - Step 6: Final answer
x = 99,047,931.78
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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.