Finding the Fourth Proportional to 129,031,998.80, 193,547,998.20 and 124,652,555.60
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Solution
The fourth proportional to 129,031,998.80, 193,547,998.20 and 124,652,555.60 is: 186,978,833.40
Step by Step Solution
- Step 1: Write the proportion equation
129,031,998.80 : 193,547,998.20 = 124,652,555.60 : x - Step 2: Convert to fraction form
129,031,998.80/193,547,998.20 = 124,652,555.60/x - Step 3: Cross multiply
129,031,998.80x = 193,547,998.20 × 124,652,555.60 - Step 4: Simplify right side
129,031,998.80x = 24,126,252,606,894,196 - Step 5: Solve for x
x = 24,126,252,606,894,196/129,031,998.80 - Step 6: Final answer
x = 186,978,833.40
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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.