Finding the Fourth Proportional to 1,778,774,785.08, 2,454,709,436.11 and 985,871,955.48
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Solution
The fourth proportional to 1,778,774,785.08, 2,454,709,436.11 and 985,871,955.48 is: 1,360,503,427.53
Step by Step Solution
- Step 1: Write the proportion equation
1,778,774,785.08 : 2,454,709,436.11 = 985,871,955.48 : x - Step 2: Convert to fraction form
1,778,774,785.08/2,454,709,436.11 = 985,871,955.48/x - Step 3: Cross multiply
1,778,774,785.08x = 2,454,709,436.11 × 985,871,955.48 - Step 4: Simplify right side
1,778,774,785.08x = 2,420,029,191,912,973,824 - Step 5: Solve for x
x = 2,420,029,191,912,973,824/1,778,774,785.08 - Step 6: Final answer
x = 1,360,503,427.53
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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.