Finding the Fourth Proportional to 149,697,544.92, 206,784,807.12 and 112,806,681.84
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Solution
The fourth proportional to 149,697,544.92, 206,784,807.12 and 112,806,681.84 is: 155,825,587.91
Step by Step Solution
- Step 1: Write the proportion equation
149,697,544.92 : 206,784,807.12 = 112,806,681.84 : x - Step 2: Convert to fraction form
149,697,544.92/206,784,807.12 = 112,806,681.84/x - Step 3: Cross multiply
149,697,544.92x = 206,784,807.12 × 112,806,681.84 - Step 4: Simplify right side
149,697,544.92x = 23,326,707,946,131,608 - Step 5: Solve for x
x = 23,326,707,946,131,608/149,697,544.92 - Step 6: Final answer
x = 155,825,587.91
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1.5x scale
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.