Finding the Fourth Proportional to 13,028,437.20, 19,542,655.80 and 10,938,248.40
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Solution
The fourth proportional to 13,028,437.20, 19,542,655.80 and 10,938,248.40 is: 16,407,372.60
Step by Step Solution
- Step 1: Write the proportion equation
13,028,437.20 : 19,542,655.80 = 10,938,248.40 : x - Step 2: Convert to fraction form
13,028,437.20/19,542,655.80 = 10,938,248.40/x - Step 3: Cross multiply
13,028,437.20x = 19,542,655.80 × 10,938,248.40 - Step 4: Simplify right side
13,028,437.20x = 213,762,423,536,100.75 - Step 5: Solve for x
x = 213,762,423,536,100.75/13,028,437.20 - Step 6: Final answer
x = 16,407,372.60
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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.