Finding the Fourth Proportional to 289,682,547.42, 399,749,746.68 and 164,243,182.08
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Solution
The fourth proportional to 289,682,547.42, 399,749,746.68 and 164,243,182.08 is: 226,648,691.87
Step by Step Solution
- Step 1: Write the proportion equation
289,682,547.42 : 399,749,746.68 = 164,243,182.08 : x - Step 2: Convert to fraction form
289,682,547.42/399,749,746.68 = 164,243,182.08/x - Step 3: Cross multiply
289,682,547.42x = 399,749,746.68 × 164,243,182.08 - Step 4: Simplify right side
289,682,547.42x = 65,656,170,430,397,120 - Step 5: Solve for x
x = 65,656,170,430,397,120/289,682,547.42 - Step 6: Final answer
x = 226,648,691.87
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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.