Finding the Fourth Proportional to 83,663,802.20, 125,747,645.70 and 72,578,336.60
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Solution
The fourth proportional to 83,663,802.20, 125,747,645.70 and 72,578,336.60 is: 109,086,064.90
Step by Step Solution
- Step 1: Write the proportion equation
83,663,802.20 : 125,747,645.70 = 72,578,336.60 : x - Step 2: Convert to fraction form
83,663,802.20/125,747,645.70 = 72,578,336.60/x - Step 3: Cross multiply
83,663,802.20x = 125,747,645.70 × 72,578,336.60 - Step 4: Simplify right side
83,663,802.20x = 9,126,554,956,272,142 - Step 5: Solve for x
x = 9,126,554,956,272,142/83,663,802.20 - Step 6: Final answer
x = 109,086,064.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.