Finding the Fourth Proportional to 758,258,246.90, 1,137,387,370.35 and 620,508,739.70
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Solution
The fourth proportional to 758,258,246.90, 1,137,387,370.35 and 620,508,739.70 is: 930,763,109.55
Step by Step Solution
- Step 1: Write the proportion equation
758,258,246.90 : 1,137,387,370.35 = 620,508,739.70 : x - Step 2: Convert to fraction form
758,258,246.90/1,137,387,370.35 = 620,508,739.70/x - Step 3: Cross multiply
758,258,246.90x = 1,137,387,370.35 × 620,508,739.70 - Step 4: Simplify right side
758,258,246.90x = 705,758,803,726,575,616 - Step 5: Solve for x
x = 705,758,803,726,575,616/758,258,246.90 - Step 6: Final answer
x = 930,763,109.55
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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.