Finding the Fourth Proportional to 149,768,642.56, 206,676,762.16 and 83,689,683.84
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Solution
The fourth proportional to 149,768,642.56, 206,676,762.16 and 83,689,683.84 is: 115,489,548.32
Step by Step Solution
- Step 1: Write the proportion equation
149,768,642.56 : 206,676,762.16 = 83,689,683.84 : x - Step 2: Convert to fraction form
149,768,642.56/206,676,762.16 = 83,689,683.84/x - Step 3: Cross multiply
149,768,642.56x = 206,676,762.16 × 83,689,683.84 - Step 4: Simplify right side
149,768,642.56x = 17,296,712,882,245,276 - Step 5: Solve for x
x = 17,296,712,882,245,276/149,768,642.56 - Step 6: Final answer
x = 115,489,548.32
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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.