Finding the Fourth Proportional to 199,714,212.90, 299,358,742.95 and 76,845,053.70
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Solution
The fourth proportional to 199,714,212.90, 299,358,742.95 and 76,845,053.70 is: 115,185,786.45
Step by Step Solution
- Step 1: Write the proportion equation
199,714,212.90 : 299,358,742.95 = 76,845,053.70 : x - Step 2: Convert to fraction form
199,714,212.90/299,358,742.95 = 76,845,053.70/x - Step 3: Cross multiply
199,714,212.90x = 299,358,742.95 × 76,845,053.70 - Step 4: Simplify right side
199,714,212.90x = 23,004,238,677,557,248 - Step 5: Solve for x
x = 23,004,238,677,557,248/199,714,212.90 - Step 6: Final answer
x = 115,185,786.45
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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.