Finding the Fourth Proportional to 129,031,853.80, 193,547,780.70 and 52,391,597.80
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Solution
The fourth proportional to 129,031,853.80, 193,547,780.70 and 52,391,597.80 is: 78,587,396.70
Step by Step Solution
- Step 1: Write the proportion equation
129,031,853.80 : 193,547,780.70 = 52,391,597.80 : x - Step 2: Convert to fraction form
129,031,853.80/193,547,780.70 = 52,391,597.80/x - Step 3: Cross multiply
129,031,853.80x = 193,547,780.70 × 52,391,597.80 - Step 4: Simplify right side
129,031,853.80x = 10,140,277,481,517,002 - Step 5: Solve for x
x = 10,140,277,481,517,002/129,031,853.80 - Step 6: Final answer
x = 78,587,396.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.