Finding the Fourth Proportional to 96,768,121.20, 144,984,220.20 and 90,721,503.60
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Solution
The fourth proportional to 96,768,121.20, 144,984,220.20 and 90,721,503.60 is: 135,924,788.99
Step by Step Solution
- Step 1: Write the proportion equation
96,768,121.20 : 144,984,220.20 = 90,721,503.60 : x - Step 2: Convert to fraction form
96,768,121.20/144,984,220.20 = 90,721,503.60/x - Step 3: Cross multiply
96,768,121.20x = 144,984,220.20 × 90,721,503.60 - Step 4: Simplify right side
96,768,121.20x = 13,153,186,454,817,490 - Step 5: Solve for x
x = 13,153,186,454,817,490/96,768,121.20 - Step 6: Final answer
x = 135,924,788.99
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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.