Finding the Fourth Proportional to 66,495,271.80, 99,742,907.70 and 63,660,919.80
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Solution
The fourth proportional to 66,495,271.80, 99,742,907.70 and 63,660,919.80 is: 95,491,379.70
Step by Step Solution
- Step 1: Write the proportion equation
66,495,271.80 : 99,742,907.70 = 63,660,919.80 : x - Step 2: Convert to fraction form
66,495,271.80/99,742,907.70 = 63,660,919.80/x - Step 3: Cross multiply
66,495,271.80x = 99,742,907.70 × 63,660,919.80 - Step 4: Simplify right side
66,495,271.80x = 6,349,725,247,708,502 - Step 5: Solve for x
x = 6,349,725,247,708,502/66,495,271.80 - Step 6: Final answer
x = 95,491,379.70
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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.