Finding the Fourth Proportional to 86,970,407.48, 120,021,646.37 and 53,024,925.65
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Solution
The fourth proportional to 86,970,407.48, 120,021,646.37 and 53,024,925.65 is: 73,175,911.89
Step by Step Solution
- Step 1: Write the proportion equation
86,970,407.48 : 120,021,646.37 = 53,024,925.65 : x - Step 2: Convert to fraction form
86,970,407.48/120,021,646.37 = 53,024,925.65/x - Step 3: Cross multiply
86,970,407.48x = 120,021,646.37 × 53,024,925.65 - Step 4: Simplify right side
86,970,407.48x = 6,364,138,874,894,717 - Step 5: Solve for x
x = 6,364,138,874,894,717/86,970,407.48 - Step 6: Final answer
x = 73,175,911.89
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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.