Finding the Fourth Proportional to 1,358,284,462.90, 1,874,506,357.92 and 755,518,765.48
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Solution
The fourth proportional to 1,358,284,462.90, 1,874,506,357.92 and 755,518,765.48 is: 1,042,656,945.66
Step by Step Solution
- Step 1: Write the proportion equation
1,358,284,462.90 : 1,874,506,357.92 = 755,518,765.48 : x - Step 2: Convert to fraction form
1,358,284,462.90/1,874,506,357.92 = 755,518,765.48/x - Step 3: Cross multiply
1,358,284,462.90x = 1,874,506,357.92 × 755,518,765.48 - Step 4: Simplify right side
1,358,284,462.90x = 1,416,224,729,420,129,536 - Step 5: Solve for x
x = 1,416,224,729,420,129,536/1,358,284,462.90 - Step 6: Final answer
x = 1,042,656,945.66
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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.