Finding the Fourth Proportional to 68,808,830.70, 103,213,246.05 and 38,197,829.10
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Solution
The fourth proportional to 68,808,830.70, 103,213,246.05 and 38,197,829.10 is: 57,296,743.65
Step by Step Solution
- Step 1: Write the proportion equation
68,808,830.70 : 103,213,246.05 = 38,197,829.10 : x - Step 2: Convert to fraction form
68,808,830.70/103,213,246.05 = 38,197,829.10/x - Step 3: Cross multiply
68,808,830.70x = 103,213,246.05 × 38,197,829.10 - Step 4: Simplify right side
68,808,830.70x = 3,942,521,933,474,150 - Step 5: Solve for x
x = 3,942,521,933,474,150/68,808,830.70 - Step 6: Final answer
x = 57,296,743.65
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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.