Finding the Fourth Proportional to 1,106,863,103.70, 1,527,481,246.74 and 630,546,413.34
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Solution
The fourth proportional to 1,106,863,103.70, 1,527,481,246.74 and 630,546,413.34 is: 870,159,840.32
Step by Step Solution
- Step 1: Write the proportion equation
1,106,863,103.70 : 1,527,481,246.74 = 630,546,413.34 : x - Step 2: Convert to fraction form
1,106,863,103.70/1,527,481,246.74 = 630,546,413.34/x - Step 3: Cross multiply
1,106,863,103.70x = 1,527,481,246.74 × 630,546,413.34 - Step 4: Simplify right side
1,106,863,103.70x = 963,147,821,576,018,688 - Step 5: Solve for x
x = 963,147,821,576,018,688/1,106,863,103.70 - Step 6: Final answer
x = 870,159,840.32
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1.5x scale
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.