Finding the Fourth Proportional to 1,258,855,635.20, 1,888,283,452.80 and 714,660,051.20
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Solution
The fourth proportional to 1,258,855,635.20, 1,888,283,452.80 and 714,660,051.20 is: 1,071,990,076.80
Step by Step Solution
- Step 1: Write the proportion equation
1,258,855,635.20 : 1,888,283,452.80 = 714,660,051.20 : x - Step 2: Convert to fraction form
1,258,855,635.20/1,888,283,452.80 = 714,660,051.20/x - Step 3: Cross multiply
1,258,855,635.20x = 1,888,283,452.80 × 714,660,051.20 - Step 4: Simplify right side
1,258,855,635.20x = 1,349,480,749,058,160,896 - Step 5: Solve for x
x = 1,349,480,749,058,160,896/1,258,855,635.20 - Step 6: Final answer
x = 1,071,990,076.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.