Finding the Fourth Proportional to 969,026,323.40, 1,453,539,485.10 and 861,887,817.80
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Solution
The fourth proportional to 969,026,323.40, 1,453,539,485.10 and 861,887,817.80 is: 1,292,831,726.70
Step by Step Solution
- Step 1: Write the proportion equation
969,026,323.40 : 1,453,539,485.10 = 861,887,817.80 : x - Step 2: Convert to fraction form
969,026,323.40/1,453,539,485.10 = 861,887,817.80/x - Step 3: Cross multiply
969,026,323.40x = 1,453,539,485.10 × 861,887,817.80 - Step 4: Simplify right side
969,026,323.40x = 1,252,787,974,898,974,464 - Step 5: Solve for x
x = 1,252,787,974,898,974,464/969,026,323.40 - Step 6: Final answer
x = 1,292,831,726.70
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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.