Finding the Fourth Proportional to 1,258,983,024.40, 1,888,474,536.60 and 714,787,440.40
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Solution
The fourth proportional to 1,258,983,024.40, 1,888,474,536.60 and 714,787,440.40 is: 1,072,181,160.60
Step by Step Solution
- Step 1: Write the proportion equation
1,258,983,024.40 : 1,888,474,536.60 = 714,787,440.40 : x - Step 2: Convert to fraction form
1,258,983,024.40/1,888,474,536.60 = 714,787,440.40/x - Step 3: Cross multiply
1,258,983,024.40x = 1,888,474,536.60 × 714,787,440.40 - Step 4: Simplify right side
1,258,983,024.40x = 1,349,857,880,276,890,112 - Step 5: Solve for x
x = 1,349,857,880,276,890,112/1,258,983,024.40 - Step 6: Final answer
x = 1,072,181,160.60
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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.