Finding the Fourth Proportional to 10,249,862.60, 15,366,920.70 and 5,762,138.60
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Solution
The fourth proportional to 10,249,862.60, 15,366,920.70 and 5,762,138.60 is: 8,638,781.84
Step by Step Solution
- Step 1: Write the proportion equation
10,249,862.60 : 15,366,920.70 = 5,762,138.60 : x - Step 2: Convert to fraction form
10,249,862.60/15,366,920.70 = 5,762,138.60/x - Step 3: Cross multiply
10,249,862.60x = 15,366,920.70 × 5,762,138.60 - Step 4: Simplify right side
10,249,862.60x = 88,546,326,928,609.02 - Step 5: Solve for x
x = 88,546,326,928,609.02/10,249,862.60 - Step 6: Final answer
x = 8,638,781.84
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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.