Finding the Fourth Proportional to 98,340,552.72, 135,706,405.30 and 54,286,605.36
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Solution
The fourth proportional to 98,340,552.72, 135,706,405.30 and 54,286,605.36 is: 74,913,551.59
Step by Step Solution
- Step 1: Write the proportion equation
98,340,552.72 : 135,706,405.30 = 54,286,605.36 : x - Step 2: Convert to fraction form
98,340,552.72/135,706,405.30 = 54,286,605.36/x - Step 3: Cross multiply
98,340,552.72x = 135,706,405.30 × 54,286,605.36 - Step 4: Simplify right side
98,340,552.72x = 7,367,040,069,345,313 - Step 5: Solve for x
x = 7,367,040,069,345,313/98,340,552.72 - Step 6: Final answer
x = 74,913,551.59
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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.