Finding the Fourth Proportional to 118,697,966.80, 178,046,950.20 and 88,086,965.20
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Solution
The fourth proportional to 118,697,966.80, 178,046,950.20 and 88,086,965.20 is: 132,130,447.80
Step by Step Solution
- Step 1: Write the proportion equation
118,697,966.80 : 178,046,950.20 = 88,086,965.20 : x - Step 2: Convert to fraction form
118,697,966.80/178,046,950.20 = 88,086,965.20/x - Step 3: Cross multiply
118,697,966.80x = 178,046,950.20 × 88,086,965.20 - Step 4: Simplify right side
118,697,966.80x = 15,683,615,506,233,532 - Step 5: Solve for x
x = 15,683,615,506,233,532/118,697,966.80 - Step 6: Final answer
x = 132,130,447.80
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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.