Finding the Fourth Proportional to 67,688,562.16, 93,409,311.12 and 38,319,142.36
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Solution
The fourth proportional to 67,688,562.16, 93,409,311.12 and 38,319,142.36 is: 52,879,904.32
Step by Step Solution
- Step 1: Write the proportion equation
67,688,562.16 : 93,409,311.12 = 38,319,142.36 : x - Step 2: Convert to fraction form
67,688,562.16/93,409,311.12 = 38,319,142.36/x - Step 3: Cross multiply
67,688,562.16x = 93,409,311.12 × 38,319,142.36 - Step 4: Simplify right side
67,688,562.16x = 3,579,364,690,556,811 - Step 5: Solve for x
x = 3,579,364,690,556,811/67,688,562.16 - Step 6: Final answer
x = 52,879,904.32
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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.