Finding the Fourth Proportional to 13,146,555.64, 19,717,993.68 and 4,510,513.84
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Solution
The fourth proportional to 13,146,555.64, 19,717,993.68 and 4,510,513.84 is: 6,765,139.54
Step by Step Solution
- Step 1: Write the proportion equation
13,146,555.64 : 19,717,993.68 = 4,510,513.84 : x - Step 2: Convert to fraction form
13,146,555.64/19,717,993.68 = 4,510,513.84/x - Step 3: Cross multiply
13,146,555.64x = 19,717,993.68 × 4,510,513.84 - Step 4: Simplify right side
13,146,555.64x = 88,938,283,390,672.53 - Step 5: Solve for x
x = 88,938,283,390,672.53/13,146,555.64 - Step 6: Final answer
x = 6,765,139.54
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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.