Finding the Fourth Proportional to 1,919,239,253.76, 2,879,921,172 and 936,673,932.12
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Solution
The fourth proportional to 1,919,239,253.76, 2,879,921,172 and 936,673,932.12 is: 1,405,529,343.51
Step by Step Solution
- Step 1: Write the proportion equation
1,919,239,253.76 : 2,879,921,172 = 936,673,932.12 : x - Step 2: Convert to fraction form
1,919,239,253.76/2,879,921,172 = 936,673,932.12/x - Step 3: Cross multiply
1,919,239,253.76x = 2,879,921,172 × 936,673,932.12 - Step 4: Simplify right side
1,919,239,253.76x = 2,697,547,088,372,878,848 - Step 5: Solve for x
x = 2,697,547,088,372,878,848/1,919,239,253.76 - Step 6: Final answer
x = 1,405,529,343.51
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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.