Finding the Fourth Proportional to 2,214,328,607.60, 3,321,532,277.40 and 661,639,089.20
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Solution
The fourth proportional to 2,214,328,607.60, 3,321,532,277.40 and 661,639,089.20 is: 992,470,396.32
Step by Step Solution
- Step 1: Write the proportion equation
2,214,328,607.60 : 3,321,532,277.40 = 661,639,089.20 : x - Step 2: Convert to fraction form
2,214,328,607.60/3,321,532,277.40 = 661,639,089.20/x - Step 3: Cross multiply
2,214,328,607.60x = 3,321,532,277.40 × 661,639,089.20 - Step 4: Simplify right side
2,214,328,607.60x = 2,197,655,590,767,337,984 - Step 5: Solve for x
x = 2,197,655,590,767,337,984/2,214,328,607.60 - Step 6: Final answer
x = 992,470,396.32
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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.