Finding the Fourth Proportional to 2,417,220,801.60, 3,625,831,202.40 and 781,610,740.80
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Solution
The fourth proportional to 2,417,220,801.60, 3,625,831,202.40 and 781,610,740.80 is: 1,172,416,111.20
Step by Step Solution
- Step 1: Write the proportion equation
2,417,220,801.60 : 3,625,831,202.40 = 781,610,740.80 : x - Step 2: Convert to fraction form
2,417,220,801.60/3,625,831,202.40 = 781,610,740.80/x - Step 3: Cross multiply
2,417,220,801.60x = 3,625,831,202.40 × 781,610,740.80 - Step 4: Simplify right side
2,417,220,801.60x = 2,833,988,612,123,618,816 - Step 5: Solve for x
x = 2,833,988,612,123,618,816/2,417,220,801.60 - Step 6: Final answer
x = 1,172,416,111.20
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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.