Finding the Fourth Proportional to 138,700,462.08, 208,024,682.34 and 69,594,710.70
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Solution
The fourth proportional to 138,700,462.08, 208,024,682.34 and 69,594,710.70 is: 104,379,014.81
Step by Step Solution
- Step 1: Write the proportion equation
138,700,462.08 : 208,024,682.34 = 69,594,710.70 : x - Step 2: Convert to fraction form
138,700,462.08/208,024,682.34 = 69,594,710.70/x - Step 3: Cross multiply
138,700,462.08x = 208,024,682.34 × 69,594,710.70 - Step 4: Simplify right side
138,700,462.08x = 14,477,417,585,911,700 - Step 5: Solve for x
x = 14,477,417,585,911,700/138,700,462.08 - Step 6: Final answer
x = 104,379,014.81
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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.