Finding the Fourth Proportional to 1,070,083,615.80, 1,605,125,423.70 and 906,824,940.60
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Solution
The fourth proportional to 1,070,083,615.80, 1,605,125,423.70 and 906,824,940.60 is: 1,360,237,410.90
Step by Step Solution
- Step 1: Write the proportion equation
1,070,083,615.80 : 1,605,125,423.70 = 906,824,940.60 : x - Step 2: Convert to fraction form
1,070,083,615.80/1,605,125,423.70 = 906,824,940.60/x - Step 3: Cross multiply
1,070,083,615.80x = 1,605,125,423.70 × 906,824,940.60 - Step 4: Simplify right side
1,070,083,615.80x = 1,455,567,767,002,302,464 - Step 5: Solve for x
x = 1,455,567,767,002,302,464/1,070,083,615.80 - Step 6: Final answer
x = 1,360,237,410.90
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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.