Finding the Fourth Proportional to 28,678,835.10, 39,576,292.11 and 15,626,202.06
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Solution
The fourth proportional to 28,678,835.10, 39,576,292.11 and 15,626,202.06 is: 21,563,886.23
Step by Step Solution
- Step 1: Write the proportion equation
28,678,835.10 : 39,576,292.11 = 15,626,202.06 : x - Step 2: Convert to fraction form
28,678,835.10/39,576,292.11 = 15,626,202.06/x - Step 3: Cross multiply
28,678,835.10x = 39,576,292.11 × 15,626,202.06 - Step 4: Simplify right side
28,678,835.10x = 618,427,137,296,443.75 - Step 5: Solve for x
x = 618,427,137,296,443.75/28,678,835.10 - Step 6: Final answer
x = 21,563,886.23
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.