Finding the Fourth Proportional to 819,977,645.08, 1,130,190,073.50 and 621,673,471
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Solution
The fourth proportional to 819,977,645.08, 1,130,190,073.50 and 621,673,471 is: 856,863,830.49
Step by Step Solution
- Step 1: Write the proportion equation
819,977,645.08 : 1,130,190,073.50 = 621,673,471 : x - Step 2: Convert to fraction form
819,977,645.08/1,130,190,073.50 = 621,673,471/x - Step 3: Cross multiply
819,977,645.08x = 1,130,190,073.50 × 621,673,471 - Step 4: Simplify right side
819,977,645.08x = 702,609,185,882,490,112 - Step 5: Solve for x
x = 702,609,185,882,490,112/819,977,645.08 - Step 6: Final answer
x = 856,863,830.49
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1.5x scale
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.