Finding the Fourth Proportional to 876,889,735.12, 1,210,107,653.76 and 480,426,788.08
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Solution
The fourth proportional to 876,889,735.12, 1,210,107,653.76 and 480,426,788.08 is: 662,988,868.55
Step by Step Solution
- Step 1: Write the proportion equation
876,889,735.12 : 1,210,107,653.76 = 480,426,788.08 : x - Step 2: Convert to fraction form
876,889,735.12/1,210,107,653.76 = 480,426,788.08/x - Step 3: Cross multiply
876,889,735.12x = 1,210,107,653.76 × 480,426,788.08 - Step 4: Simplify right side
876,889,735.12x = 581,368,133,326,941,568 - Step 5: Solve for x
x = 581,368,133,326,941,568/876,889,735.12 - Step 6: Final answer
x = 662,988,868.55
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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.