Finding the Fourth Proportional to 7,281,252,236.90, 10,921,878,355.35 and 4,185,384,025.70
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Solution
The fourth proportional to 7,281,252,236.90, 10,921,878,355.35 and 4,185,384,025.70 is: 6,278,076,038.55
Step by Step Solution
- Step 1: Write the proportion equation
7,281,252,236.90 : 10,921,878,355.35 = 4,185,384,025.70 : x - Step 2: Convert to fraction form
7,281,252,236.90/10,921,878,355.35 = 4,185,384,025.70/x - Step 3: Cross multiply
7,281,252,236.90x = 10,921,878,355.35 × 4,185,384,025.70 - Step 4: Simplify right side
7,281,252,236.90x = 45,712,255,199,120,474,112 - Step 5: Solve for x
x = 45,712,255,199,120,474,112/7,281,252,236.90 - Step 6: Final answer
x = 6,278,076,038.55
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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.