Finding the Fourth Proportional to 876,889,736.12, 1,210,107,655.14 and 480,426,789.08
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Solution
The fourth proportional to 876,889,736.12, 1,210,107,655.14 and 480,426,789.08 is: 662,988,869.93
Step by Step Solution
- Step 1: Write the proportion equation
876,889,736.12 : 1,210,107,655.14 = 480,426,789.08 : x - Step 2: Convert to fraction form
876,889,736.12/1,210,107,655.14 = 480,426,789.08/x - Step 3: Cross multiply
876,889,736.12x = 1,210,107,655.14 × 480,426,789.08 - Step 4: Simplify right side
876,889,736.12x = 581,368,135,200,038,144 - Step 5: Solve for x
x = 581,368,135,200,038,144/876,889,736.12 - Step 6: Final answer
x = 662,988,869.93
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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.