Finding the Fourth Proportional to 141,888,465.09, 212,730,552.09 and 87,188,036.43
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Solution
The fourth proportional to 141,888,465.09, 212,730,552.09 and 87,188,036.43 is: 130,719,287.95
Step by Step Solution
- Step 1: Write the proportion equation
141,888,465.09 : 212,730,552.09 = 87,188,036.43 : x - Step 2: Convert to fraction form
141,888,465.09/212,730,552.09 = 87,188,036.43/x - Step 3: Cross multiply
141,888,465.09x = 212,730,552.09 × 87,188,036.43 - Step 4: Simplify right side
141,888,465.09x = 18,547,559,125,396,936 - Step 5: Solve for x
x = 18,547,559,125,396,936/141,888,465.09 - Step 6: Final answer
x = 130,719,287.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.