Finding the Fourth Proportional to 869,968,375.20, 1,304,952,562.80 and 836,525,354.40
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Solution
The fourth proportional to 869,968,375.20, 1,304,952,562.80 and 836,525,354.40 is: 1,254,788,031.60
Step by Step Solution
- Step 1: Write the proportion equation
869,968,375.20 : 1,304,952,562.80 = 836,525,354.40 : x - Step 2: Convert to fraction form
869,968,375.20/1,304,952,562.80 = 836,525,354.40/x - Step 3: Cross multiply
869,968,375.20x = 1,304,952,562.80 × 836,525,354.40 - Step 4: Simplify right side
869,968,375.20x = 1,091,625,905,071,458,176 - Step 5: Solve for x
x = 1,091,625,905,071,458,176/869,968,375.20 - Step 6: Final answer
x = 1,254,788,031.60
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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.