Finding the Fourth Proportional to 868,605,219.63, 1,198,683,227.57 and 472,129,142.04
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Solution
The fourth proportional to 868,605,219.63, 1,198,683,227.57 and 472,129,142.04 is: 651,542,577.71
Step by Step Solution
- Step 1: Write the proportion equation
868,605,219.63 : 1,198,683,227.57 = 472,129,142.04 : x - Step 2: Convert to fraction form
868,605,219.63/1,198,683,227.57 = 472,129,142.04/x - Step 3: Cross multiply
868,605,219.63x = 1,198,683,227.57 × 472,129,142.04 - Step 4: Simplify right side
868,605,219.63x = 565,933,283,808,001,600 - Step 5: Solve for x
x = 565,933,283,808,001,600/868,605,219.63 - Step 6: Final answer
x = 651,542,577.71
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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.