Finding the Fourth Proportional to 99,653,437.80, 149,480,156.70 and 74,144,269.80
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Solution
The fourth proportional to 99,653,437.80, 149,480,156.70 and 74,144,269.80 is: 111,216,404.70
Step by Step Solution
- Step 1: Write the proportion equation
99,653,437.80 : 149,480,156.70 = 74,144,269.80 : x - Step 2: Convert to fraction form
99,653,437.80/149,480,156.70 = 74,144,269.80/x - Step 3: Cross multiply
99,653,437.80x = 149,480,156.70 × 74,144,269.80 - Step 4: Simplify right side
99,653,437.80x = 11,083,097,068,111,076 - Step 5: Solve for x
x = 11,083,097,068,111,076/99,653,437.80 - Step 6: Final answer
x = 111,216,404.70
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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.