Finding the Fourth Proportional to 70,758,682.79, 97,646,782.23 and 39,818,851.76
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Solution
The fourth proportional to 70,758,682.79, 97,646,782.23 and 39,818,851.76 is: 54,949,902.88
Step by Step Solution
- Step 1: Write the proportion equation
70,758,682.79 : 97,646,782.23 = 39,818,851.76 : x - Step 2: Convert to fraction form
70,758,682.79/97,646,782.23 = 39,818,851.76/x - Step 3: Cross multiply
70,758,682.79x = 97,646,782.23 × 39,818,851.76 - Step 4: Simplify right side
70,758,682.79x = 3,888,182,746,701,489.50 - Step 5: Solve for x
x = 3,888,182,746,701,489.50/70,758,682.79 - Step 6: Final answer
x = 54,949,902.88
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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.