Finding the Fourth Proportional to 156,666,554.75, 216,330,370.04 and 130,697,198.75
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Solution
The fourth proportional to 156,666,554.75, 216,330,370.04 and 130,697,198.75 is: 180,471,022.76
Step by Step Solution
- Step 1: Write the proportion equation
156,666,554.75 : 216,330,370.04 = 130,697,198.75 : x - Step 2: Convert to fraction form
156,666,554.75/216,330,370.04 = 130,697,198.75/x - Step 3: Cross multiply
156,666,554.75x = 216,330,370.04 × 130,697,198.75 - Step 4: Simplify right side
156,666,554.75x = 28,273,773,368,778,924 - Step 5: Solve for x
x = 28,273,773,368,778,924/156,666,554.75 - Step 6: Final answer
x = 180,471,022.76
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1.5x scale
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.