Finding the Fourth Proportional to 1,113,305,184.36, 1,536,319,063.98 and 618,299,779.32
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Solution
The fourth proportional to 1,113,305,184.36, 1,536,319,063.98 and 618,299,779.32 is: 853,230,319.56
Step by Step Solution
- Step 1: Write the proportion equation
1,113,305,184.36 : 1,536,319,063.98 = 618,299,779.32 : x - Step 2: Convert to fraction form
1,113,305,184.36/1,536,319,063.98 = 618,299,779.32/x - Step 3: Cross multiply
1,113,305,184.36x = 1,536,319,063.98 × 618,299,779.32 - Step 4: Simplify right side
1,113,305,184.36x = 949,905,738,223,943,040 - Step 5: Solve for x
x = 949,905,738,223,943,040/1,113,305,184.36 - Step 6: Final answer
x = 853,230,319.56
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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.