Finding the Fourth Proportional to 1,368,390,166.10, 1,888,451,750.70 and 765,524,825.61
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Solution
The fourth proportional to 1,368,390,166.10, 1,888,451,750.70 and 765,524,825.61 is: 1,056,465,277.92
Step by Step Solution
- Step 1: Write the proportion equation
1,368,390,166.10 : 1,888,451,750.70 = 765,524,825.61 : x - Step 2: Convert to fraction form
1,368,390,166.10/1,888,451,750.70 = 765,524,825.61/x - Step 3: Cross multiply
1,368,390,166.10x = 1,888,451,750.70 × 765,524,825.61 - Step 4: Simplify right side
1,368,390,166.10x = 1,445,656,697,127,516,672 - Step 5: Solve for x
x = 1,445,656,697,127,516,672/1,368,390,166.10 - Step 6: Final answer
x = 1,056,465,277.92
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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.