Finding the Fourth Proportional to 144,220,830.88, 199,034,511.36 and 81,475,166.68
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Solution
The fourth proportional to 144,220,830.88, 199,034,511.36 and 81,475,166.68 is: 112,441,246.45
Step by Step Solution
- Step 1: Write the proportion equation
144,220,830.88 : 199,034,511.36 = 81,475,166.68 : x - Step 2: Convert to fraction form
144,220,830.88/199,034,511.36 = 81,475,166.68/x - Step 3: Cross multiply
144,220,830.88x = 199,034,511.36 × 81,475,166.68 - Step 4: Simplify right side
144,220,830.88x = 16,216,369,988,128,356 - Step 5: Solve for x
x = 16,216,369,988,128,356/144,220,830.88 - Step 6: Final answer
x = 112,441,246.45
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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.