Finding the Fourth Proportional to 961,447,984.20, 1,442,171,976.30 and 896,950,729.80
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Solution
The fourth proportional to 961,447,984.20, 1,442,171,976.30 and 896,950,729.80 is: 1,345,426,094.70
Step by Step Solution
- Step 1: Write the proportion equation
961,447,984.20 : 1,442,171,976.30 = 896,950,729.80 : x - Step 2: Convert to fraction form
961,447,984.20/1,442,171,976.30 = 896,950,729.80/x - Step 3: Cross multiply
961,447,984.20x = 1,442,171,976.30 × 896,950,729.80 - Step 4: Simplify right side
961,447,984.20x = 1,293,557,206,639,393,280 - Step 5: Solve for x
x = 1,293,557,206,639,393,280/961,447,984.20 - Step 6: Final answer
x = 1,345,426,094.70
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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.