Finding the Fourth Proportional to 2,417,220,943.60, 3,625,831,415.40 and 781,610,882.80
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Solution
The fourth proportional to 2,417,220,943.60, 3,625,831,415.40 and 781,610,882.80 is: 1,172,416,324.20
Step by Step Solution
- Step 1: Write the proportion equation
2,417,220,943.60 : 3,625,831,415.40 = 781,610,882.80 : x - Step 2: Convert to fraction form
2,417,220,943.60/3,625,831,415.40 = 781,610,882.80/x - Step 3: Cross multiply
2,417,220,943.60x = 3,625,831,415.40 × 781,610,882.80 - Step 4: Simplify right side
2,417,220,943.60x = 2,833,989,293,474,767,360 - Step 5: Solve for x
x = 2,833,989,293,474,767,360/2,417,220,943.60 - Step 6: Final answer
x = 1,172,416,324.20
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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.