Finding the Fourth Proportional to 138,700,465.08, 208,024,686.84 and 69,594,713.70
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Solution
The fourth proportional to 138,700,465.08, 208,024,686.84 and 69,594,713.70 is: 104,379,019.31
Step by Step Solution
- Step 1: Write the proportion equation
138,700,465.08 : 208,024,686.84 = 69,594,713.70 : x - Step 2: Convert to fraction form
138,700,465.08/208,024,686.84 = 69,594,713.70/x - Step 3: Cross multiply
138,700,465.08x = 208,024,686.84 × 69,594,713.70 - Step 4: Simplify right side
138,700,465.08x = 14,477,418,523,161,958 - Step 5: Solve for x
x = 14,477,418,523,161,958/138,700,465.08 - Step 6: Final answer
x = 104,379,019.31
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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.