Finding the Fourth Proportional to 776,918,643.20, 1,165,377,964.80 and 741,086,835.20
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Solution
The fourth proportional to 776,918,643.20, 1,165,377,964.80 and 741,086,835.20 is: 1,111,630,252.80
Step by Step Solution
- Step 1: Write the proportion equation
776,918,643.20 : 1,165,377,964.80 = 741,086,835.20 : x - Step 2: Convert to fraction form
776,918,643.20/1,165,377,964.80 = 741,086,835.20/x - Step 3: Cross multiply
776,918,643.20x = 1,165,377,964.80 × 741,086,835.20 - Step 4: Simplify right side
776,918,643.20x = 863,646,267,745,448,960 - Step 5: Solve for x
x = 863,646,267,745,448,960/776,918,643.20 - Step 6: Final answer
x = 1,111,630,252.80
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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.