Finding the Fourth Proportional to 77,792,809.29, 107,354,041.37 and 42,985,195.26
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Solution
The fourth proportional to 77,792,809.29, 107,354,041.37 and 42,985,195.26 is: 59,319,549.87
Step by Step Solution
- Step 1: Write the proportion equation
77,792,809.29 : 107,354,041.37 = 42,985,195.26 : x - Step 2: Convert to fraction form
77,792,809.29/107,354,041.37 = 42,985,195.26/x - Step 3: Cross multiply
77,792,809.29x = 107,354,041.37 × 42,985,195.26 - Step 4: Simplify right side
77,792,809.29x = 4,614,634,429,783,259 - Step 5: Solve for x
x = 4,614,634,429,783,259/77,792,809.29 - Step 6: Final answer
x = 59,319,549.87
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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.