Finding the Fourth Proportional to 7,680,479,680,970.20, 11,521,396,793,782 and 2,166,943,969,864.20
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Solution
The fourth proportional to 7,680,479,680,970.20, 11,521,396,793,782 and 2,166,943,969,864.20 is: 3,250,607,038,067.82
Step by Step Solution
- Step 1: Write the proportion equation
7,680,479,680,970.20 : 11,521,396,793,782 = 2,166,943,969,864.20 : x - Step 2: Convert to fraction form
7,680,479,680,970.20/11,521,396,793,782 = 2,166,943,969,864.20/x - Step 3: Cross multiply
7,680,479,680,970.20x = 11,521,396,793,782 × 2,166,943,969,864.20 - Step 4: Simplify right side
7,680,479,680,970.20x = 24,966,221,306,698,633,903,603,712 - Step 5: Solve for x
x = 24,966,221,306,698,633,903,603,712/7,680,479,680,970.20 - Step 6: Final answer
x = 3,250,607,038,067.82
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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.