Finding the Fourth Proportional to 202,107,275.21, 278,909,707.93 and 111,583,681.99
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Solution
The fourth proportional to 202,107,275.21, 278,909,707.93 and 111,583,681.99 is: 153,986,402.12
Step by Step Solution
- Step 1: Write the proportion equation
202,107,275.21 : 278,909,707.93 = 111,583,681.99 : x - Step 2: Convert to fraction form
202,107,275.21/278,909,707.93 = 111,583,681.99/x - Step 3: Cross multiply
202,107,275.21x = 278,909,707.93 × 111,583,681.99 - Step 4: Simplify right side
202,107,275.21x = 31,121,772,152,608,668 - Step 5: Solve for x
x = 31,121,772,152,608,668/202,107,275.21 - Step 6: Final answer
x = 153,986,402.12
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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.