Finding the Fourth Proportional to 1,063,011,197.20, 1,594,516,795.80 and 416,778,941.20
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Solution
The fourth proportional to 1,063,011,197.20, 1,594,516,795.80 and 416,778,941.20 is: 625,168,411.80
Step by Step Solution
- Step 1: Write the proportion equation
1,063,011,197.20 : 1,594,516,795.80 = 416,778,941.20 : x - Step 2: Convert to fraction form
1,063,011,197.20/1,594,516,795.80 = 416,778,941.20/x - Step 3: Cross multiply
1,063,011,197.20x = 1,594,516,795.80 × 416,778,941.20 - Step 4: Simplify right side
1,063,011,197.20x = 664,561,021,879,140,608 - Step 5: Solve for x
x = 664,561,021,879,140,608/1,063,011,197.20 - Step 6: Final answer
x = 625,168,411.80
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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.