Finding the Fourth Proportional to 2,920,065,909.74, 4,380,098,915.36 and 709,260,726.21
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Solution
The fourth proportional to 2,920,065,909.74, 4,380,098,915.36 and 709,260,726.21 is: 1,063,891,101.64
Step by Step Solution
- Step 1: Write the proportion equation
2,920,065,909.74 : 4,380,098,915.36 = 709,260,726.21 : x - Step 2: Convert to fraction form
2,920,065,909.74/4,380,098,915.36 = 709,260,726.21/x - Step 3: Cross multiply
2,920,065,909.74x = 4,380,098,915.36 × 709,260,726.21 - Step 4: Simplify right side
2,920,065,909.74x = 3,106,632,137,579,866,624 - Step 5: Solve for x
x = 3,106,632,137,579,866,624/2,920,065,909.74 - Step 6: Final answer
x = 1,063,891,101.64
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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.