Finding the Fourth Proportional to 787,007,368.90, 1,180,511,053.35 and 241,776,021.70
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Solution
The fourth proportional to 787,007,368.90, 1,180,511,053.35 and 241,776,021.70 is: 362,664,032.55
Step by Step Solution
- Step 1: Write the proportion equation
787,007,368.90 : 1,180,511,053.35 = 241,776,021.70 : x - Step 2: Convert to fraction form
787,007,368.90/1,180,511,053.35 = 241,776,021.70/x - Step 3: Cross multiply
787,007,368.90x = 1,180,511,053.35 × 241,776,021.70 - Step 4: Simplify right side
787,007,368.90x = 285,419,266,051,839,424 - Step 5: Solve for x
x = 285,419,266,051,839,424/787,007,368.90 - Step 6: Final answer
x = 362,664,032.55
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1.5x scale
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.