Finding the Fourth Proportional to 1,368,718,871.04, 2,052,258,411.60 and 435,638,677.68
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Solution
The fourth proportional to 1,368,718,871.04, 2,052,258,411.60 and 435,638,677.68 is: 653,197,058.65
Step by Step Solution
- Step 1: Write the proportion equation
1,368,718,871.04 : 2,052,258,411.60 = 435,638,677.68 : x - Step 2: Convert to fraction form
1,368,718,871.04/2,052,258,411.60 = 435,638,677.68/x - Step 3: Cross multiply
1,368,718,871.04x = 2,052,258,411.60 × 435,638,677.68 - Step 4: Simplify right side
1,368,718,871.04x = 894,043,140,687,081,088 - Step 5: Solve for x
x = 894,043,140,687,081,088/1,368,718,871.04 - Step 6: Final answer
x = 653,197,058.65
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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.