Finding the Fourth Proportional to 1,620,182,823.36, 2,235,863,030.40 and 877,626,879.36
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Solution
The fourth proportional to 1,620,182,823.36, 2,235,863,030.40 and 877,626,879.36 is: 1,211,130,908.04
Step by Step Solution
- Step 1: Write the proportion equation
1,620,182,823.36 : 2,235,863,030.40 = 877,626,879.36 : x - Step 2: Convert to fraction form
1,620,182,823.36/2,235,863,030.40 = 877,626,879.36/x - Step 3: Cross multiply
1,620,182,823.36x = 2,235,863,030.40 × 877,626,879.36 - Step 4: Simplify right side
1,620,182,823.36x = 1,962,253,494,046,344,960 - Step 5: Solve for x
x = 1,962,253,494,046,344,960/1,620,182,823.36 - Step 6: Final answer
x = 1,211,130,908.04
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.