Finding the Fourth Proportional to 6,897,575.18, 9,518,656.38 and 3,998,646.54
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Solution
The fourth proportional to 6,897,575.18, 9,518,656.38 and 3,998,646.54 is: 5,518,133.75
Step by Step Solution
- Step 1: Write the proportion equation
6,897,575.18 : 9,518,656.38 = 3,998,646.54 : x - Step 2: Convert to fraction form
6,897,575.18/9,518,656.38 = 3,998,646.54/x - Step 3: Cross multiply
6,897,575.18x = 9,518,656.38 × 3,998,646.54 - Step 4: Simplify right side
6,897,575.18x = 38,061,742,384,341 - Step 5: Solve for x
x = 38,061,742,384,341/6,897,575.18 - Step 6: Final answer
x = 5,518,133.75
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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.