Finding the Fourth Proportional to 7,912,535,135.18, 10,919,319,972.48 and 4,344,473,148.80
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Solution
The fourth proportional to 7,912,535,135.18, 10,919,319,972.48 and 4,344,473,148.80 is: 5,995,384,742.45
Step by Step Solution
- Step 1: Write the proportion equation
7,912,535,135.18 : 10,919,319,972.48 = 4,344,473,148.80 : x - Step 2: Convert to fraction form
7,912,535,135.18/10,919,319,972.48 = 4,344,473,148.80/x - Step 3: Cross multiply
7,912,535,135.18x = 10,919,319,972.48 × 4,344,473,148.80 - Step 4: Simplify right side
7,912,535,135.18x = 47,438,692,423,540,318,208 - Step 5: Solve for x
x = 47,438,692,423,540,318,208/7,912,535,135.18 - Step 6: Final answer
x = 5,995,384,742.45
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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.