Finding the Fourth Proportional to 1,513,361,321.40, 2,270,041,982.10 and 929,201,374.20
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Solution
The fourth proportional to 1,513,361,321.40, 2,270,041,982.10 and 929,201,374.20 is: 1,393,802,061.30
Step by Step Solution
- Step 1: Write the proportion equation
1,513,361,321.40 : 2,270,041,982.10 = 929,201,374.20 : x - Step 2: Convert to fraction form
1,513,361,321.40/2,270,041,982.10 = 929,201,374.20/x - Step 3: Cross multiply
1,513,361,321.40x = 2,270,041,982.10 × 929,201,374.20 - Step 4: Simplify right side
1,513,361,321.40x = 2,109,326,129,259,011,840 - Step 5: Solve for x
x = 2,109,326,129,259,011,840/1,513,361,321.40 - Step 6: Final answer
x = 1,393,802,061.30
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1.5x scale
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.