Finding the Fourth Proportional to 91,031,609.80, 136,547,414.70 and 91,031,609.80
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Solution
The fourth proportional to 91,031,609.80, 136,547,414.70 and 91,031,609.80 is: 136,547,414.70
Step by Step Solution
- Step 1: Write the proportion equation
91,031,609.80 : 136,547,414.70 = 91,031,609.80 : x - Step 2: Convert to fraction form
91,031,609.80/136,547,414.70 = 91,031,609.80/x - Step 3: Cross multiply
91,031,609.80x = 136,547,414.70 × 91,031,609.80 - Step 4: Simplify right side
91,031,609.80x = 12,430,130,974,169,182 - Step 5: Solve for x
x = 12,430,130,974,169,182/91,031,609.80 - Step 6: Final answer
x = 136,547,414.70
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1.5x scale
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.