Finding the Fourth Proportional to 70,984,941.70, 106,403,929.35 and 38,568,352.90
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Solution
The fourth proportional to 70,984,941.70, 106,403,929.35 and 38,568,352.90 is: 57,812,603.61
Step by Step Solution
- Step 1: Write the proportion equation
70,984,941.70 : 106,403,929.35 = 38,568,352.90 : x - Step 2: Convert to fraction form
70,984,941.70/106,403,929.35 = 38,568,352.90/x - Step 3: Cross multiply
70,984,941.70x = 106,403,929.35 × 38,568,352.90 - Step 4: Simplify right side
70,984,941.70x = 4,103,824,297,117,467 - Step 5: Solve for x
x = 4,103,824,297,117,467/70,984,941.70 - Step 6: Final answer
x = 57,812,603.61
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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.