Finding the Fourth Proportional to 77,707,660.26, 107,234,867.34 and 42,424,259.52
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Solution
The fourth proportional to 77,707,660.26, 107,234,867.34 and 42,424,259.52 is: 58,544,547.94
Step by Step Solution
- Step 1: Write the proportion equation
77,707,660.26 : 107,234,867.34 = 42,424,259.52 : x - Step 2: Convert to fraction form
77,707,660.26/107,234,867.34 = 42,424,259.52/x - Step 3: Cross multiply
77,707,660.26x = 107,234,867.34 × 42,424,259.52 - Step 4: Simplify right side
77,707,660.26x = 4,549,359,841,624,933 - Step 5: Solve for x
x = 4,549,359,841,624,933/77,707,660.26 - Step 6: Final answer
x = 58,544,547.94
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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.