Finding the Fourth Proportional to 1,151,879,719.98, 1,589,582,696.83 and 623,232,106.74
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Solution
The fourth proportional to 1,151,879,719.98, 1,589,582,696.83 and 623,232,106.74 is: 860,054,184.30
Step by Step Solution
- Step 1: Write the proportion equation
1,151,879,719.98 : 1,589,582,696.83 = 623,232,106.74 : x - Step 2: Convert to fraction form
1,151,879,719.98/1,589,582,696.83 = 623,232,106.74/x - Step 3: Cross multiply
1,151,879,719.98x = 1,589,582,696.83 × 623,232,106.74 - Step 4: Simplify right side
1,151,879,719.98x = 990,678,972,982,811,648 - Step 5: Solve for x
x = 990,678,972,982,811,648/1,151,879,719.98 - Step 6: Final answer
x = 860,054,184.30
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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.