Finding the Fourth Proportional to 756,869,348.80, 1,135,304,023.20 and 675,240,011.20
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Solution
The fourth proportional to 756,869,348.80, 1,135,304,023.20 and 675,240,011.20 is: 1,012,860,016.80
Step by Step Solution
- Step 1: Write the proportion equation
756,869,348.80 : 1,135,304,023.20 = 675,240,011.20 : x - Step 2: Convert to fraction form
756,869,348.80/1,135,304,023.20 = 675,240,011.20/x - Step 3: Cross multiply
756,869,348.80x = 1,135,304,023.20 × 675,240,011.20 - Step 4: Simplify right side
756,869,348.80x = 766,602,701,340,973,184 - Step 5: Solve for x
x = 766,602,701,340,973,184/756,869,348.80 - Step 6: Final answer
x = 1,012,860,016.80
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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.