Finding the Fourth Proportional to 201,863,145.30, 302,936,435.55 and 86,930,171.70
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Solution
The fourth proportional to 201,863,145.30, 302,936,435.55 and 86,930,171.70 is: 130,456,286.70
Step by Step Solution
- Step 1: Write the proportion equation
201,863,145.30 : 302,936,435.55 = 86,930,171.70 : x - Step 2: Convert to fraction form
201,863,145.30/302,936,435.55 = 86,930,171.70/x - Step 3: Cross multiply
201,863,145.30x = 302,936,435.55 × 86,930,171.70 - Step 4: Simplify right side
201,863,145.30x = 26,334,316,356,547,484 - Step 5: Solve for x
x = 26,334,316,356,547,484/201,863,145.30 - Step 6: Final answer
x = 130,456,286.70
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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.