Finding the Fourth Proportional to 7,864,395.64, 10,854,636.14 and 5,146,567
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Solution
The fourth proportional to 7,864,395.64, 10,854,636.14 and 5,146,567 is: 7,103,420.87
Step by Step Solution
- Step 1: Write the proportion equation
7,864,395.64 : 10,854,636.14 = 5,146,567 : x - Step 2: Convert to fraction form
7,864,395.64/10,854,636.14 = 5,146,567/x - Step 3: Cross multiply
7,864,395.64x = 10,854,636.14 × 5,146,567 - Step 4: Simplify right side
7,864,395.64x = 55,864,112,155,131.38 - Step 5: Solve for x
x = 55,864,112,155,131.38/7,864,395.64 - Step 6: Final answer
x = 7,103,420.87
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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.