Finding the Fourth Proportional to 487,780,391.47, 731,814,316.84 and 196,497,623.11
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Solution
The fourth proportional to 487,780,391.47, 731,814,316.84 and 196,497,623.11 is: 294,804,334.76
Step by Step Solution
- Step 1: Write the proportion equation
487,780,391.47 : 731,814,316.84 = 196,497,623.11 : x - Step 2: Convert to fraction form
487,780,391.47/731,814,316.84 = 196,497,623.11/x - Step 3: Cross multiply
487,780,391.47x = 731,814,316.84 × 196,497,623.11 - Step 4: Simplify right side
487,780,391.47x = 143,799,773,816,928,464 - Step 5: Solve for x
x = 143,799,773,816,928,464/487,780,391.47 - Step 6: Final answer
x = 294,804,334.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.