Finding the Fourth Proportional to 103,486,463.70, 155,229,695.55 and 98,447,615.70
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Solution
The fourth proportional to 103,486,463.70, 155,229,695.55 and 98,447,615.70 is: 147,671,423.55
Step by Step Solution
- Step 1: Write the proportion equation
103,486,463.70 : 155,229,695.55 = 98,447,615.70 : x - Step 2: Convert to fraction form
103,486,463.70/155,229,695.55 = 98,447,615.70/x - Step 3: Cross multiply
103,486,463.70x = 155,229,695.55 × 98,447,615.70 - Step 4: Simplify right side
103,486,463.70x = 15,281,993,412,734,402 - Step 5: Solve for x
x = 15,281,993,412,734,402/103,486,463.70 - Step 6: Final answer
x = 147,671,423.55
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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.