Finding the Fourth Proportional to 128,011,074.14, 176,655,276.88 and 69,273,741.08
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Solution
The fourth proportional to 128,011,074.14, 176,655,276.88 and 69,273,741.08 is: 95,597,759.75
Step by Step Solution
- Step 1: Write the proportion equation
128,011,074.14 : 176,655,276.88 = 69,273,741.08 : x - Step 2: Convert to fraction form
128,011,074.14/176,655,276.88 = 69,273,741.08/x - Step 3: Cross multiply
128,011,074.14x = 176,655,276.88 × 69,273,741.08 - Step 4: Simplify right side
128,011,074.14x = 12,237,571,911,000,830 - Step 5: Solve for x
x = 12,237,571,911,000,830/128,011,074.14 - Step 6: Final answer
x = 95,597,759.75
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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.