Finding the Fourth Proportional to 285,117,160.68, 393,461,681.40 and 154,736,968.68
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Solution
The fourth proportional to 285,117,160.68, 393,461,681.40 and 154,736,968.68 is: 213,537,016.59
Step by Step Solution
- Step 1: Write the proportion equation
285,117,160.68 : 393,461,681.40 = 154,736,968.68 : x - Step 2: Convert to fraction form
285,117,160.68/393,461,681.40 = 154,736,968.68/x - Step 3: Cross multiply
285,117,160.68x = 393,461,681.40 × 154,736,968.68 - Step 4: Simplify right side
285,117,160.68x = 60,883,067,871,571,936 - Step 5: Solve for x
x = 60,883,067,871,571,936/285,117,160.68 - Step 6: Final answer
x = 213,537,016.59
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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.