Finding the Fourth Proportional to 6,985,477.90, 9,634,763.19 and 6,168,239.74
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Solution
The fourth proportional to 6,985,477.90, 9,634,763.19 and 6,168,239.74 is: 8,507,582.45
Step by Step Solution
- Step 1: Write the proportion equation
6,985,477.90 : 9,634,763.19 = 6,168,239.74 : x - Step 2: Convert to fraction form
6,985,477.90/9,634,763.19 = 6,168,239.74/x - Step 3: Cross multiply
6,985,477.90x = 9,634,763.19 × 6,168,239.74 - Step 4: Simplify right side
6,985,477.90x = 59,429,529,194,047.17 - Step 5: Solve for x
x = 59,429,529,194,047.17/6,985,477.90 - Step 6: Final answer
x = 8,507,582.45
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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.