Finding the Fourth Proportional to 758,258,272.90, 1,137,387,409.35 and 620,508,765.70
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Solution
The fourth proportional to 758,258,272.90, 1,137,387,409.35 and 620,508,765.70 is: 930,763,148.55
Step by Step Solution
- Step 1: Write the proportion equation
758,258,272.90 : 1,137,387,409.35 = 620,508,765.70 : x - Step 2: Convert to fraction form
758,258,272.90/1,137,387,409.35 = 620,508,765.70/x - Step 3: Cross multiply
758,258,272.90x = 1,137,387,409.35 × 620,508,765.70 - Step 4: Simplify right side
758,258,272.90x = 705,758,857,498,489,088 - Step 5: Solve for x
x = 705,758,857,498,489,088/758,258,272.90 - Step 6: Final answer
x = 930,763,148.55
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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.