Finding the Fourth Proportional to 145,738,988.48, 201,114,307.28 and 79,658,929.28
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Solution
The fourth proportional to 145,738,988.48, 201,114,307.28 and 79,658,929.28 is: 109,926,317.92
Step by Step Solution
- Step 1: Write the proportion equation
145,738,988.48 : 201,114,307.28 = 79,658,929.28 : x - Step 2: Convert to fraction form
145,738,988.48/201,114,307.28 = 79,658,929.28/x - Step 3: Cross multiply
145,738,988.48x = 201,114,307.28 × 79,658,929.28 - Step 4: Simplify right side
145,738,988.48x = 16,020,550,380,813,710 - Step 5: Solve for x
x = 16,020,550,380,813,710/145,738,988.48 - Step 6: Final answer
x = 109,926,317.92
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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.