Finding the Fourth Proportional to 1,130,330,516.18, 1,559,857,405.52 and 628,528,525.96
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Solution
The fourth proportional to 1,130,330,516.18, 1,559,857,405.52 and 628,528,525.96 is: 867,370,084.91
Step by Step Solution
- Step 1: Write the proportion equation
1,130,330,516.18 : 1,559,857,405.52 = 628,528,525.96 : x - Step 2: Convert to fraction form
1,130,330,516.18/1,559,857,405.52 = 628,528,525.96/x - Step 3: Cross multiply
1,130,330,516.18x = 1,559,857,405.52 × 628,528,525.96 - Step 4: Simplify right side
1,130,330,516.18x = 980,414,875,799,275,648 - Step 5: Solve for x
x = 980,414,875,799,275,648/1,130,330,516.18 - Step 6: Final answer
x = 867,370,084.91
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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.