Finding the Fourth Proportional to 103,092,389.07, 142,270,455.77 and 62,860,742.99
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Solution
The fourth proportional to 103,092,389.07, 142,270,455.77 and 62,860,742.99 is: 86,749,629.48
Step by Step Solution
- Step 1: Write the proportion equation
103,092,389.07 : 142,270,455.77 = 62,860,742.99 : x - Step 2: Convert to fraction form
103,092,389.07/142,270,455.77 = 62,860,742.99/x - Step 3: Cross multiply
103,092,389.07x = 142,270,455.77 × 62,860,742.99 - Step 4: Simplify right side
103,092,389.07x = 8,943,226,554,202,476 - Step 5: Solve for x
x = 8,943,226,554,202,476/103,092,389.07 - Step 6: Final answer
x = 86,749,629.48
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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.