Finding the Fourth Proportional to 808,517,787.60, 1,212,776,681.40 and 801,715,342.80
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Solution
The fourth proportional to 808,517,787.60, 1,212,776,681.40 and 801,715,342.80 is: 1,202,573,014.20
Step by Step Solution
- Step 1: Write the proportion equation
808,517,787.60 : 1,212,776,681.40 = 801,715,342.80 : x - Step 2: Convert to fraction form
808,517,787.60/1,212,776,681.40 = 801,715,342.80/x - Step 3: Cross multiply
808,517,787.60x = 1,212,776,681.40 × 801,715,342.80 - Step 4: Simplify right side
808,517,787.60x = 972,301,672,868,447,360 - Step 5: Solve for x
x = 972,301,672,868,447,360/808,517,787.60 - Step 6: Final answer
x = 1,202,573,014.20
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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.