Finding the Fourth Proportional to 99,804,567.60, 149,482,902.60 and 81,888,663.60
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Solution
The fourth proportional to 99,804,567.60, 149,482,902.60 and 81,888,663.60 is: 122,649,247.62
Step by Step Solution
- Step 1: Write the proportion equation
99,804,567.60 : 149,482,902.60 = 81,888,663.60 : x - Step 2: Convert to fraction form
99,804,567.60/149,482,902.60 = 81,888,663.60/x - Step 3: Cross multiply
99,804,567.60x = 149,482,902.60 × 81,888,663.60 - Step 4: Simplify right side
99,804,567.60x = 12,240,955,124,962,964 - Step 5: Solve for x
x = 12,240,955,124,962,964/99,804,567.60 - Step 6: Final answer
x = 122,649,247.62
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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.