Finding the Fourth Proportional to 153,246,421.06, 211,484,544.57 and 83,636,266.66
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Solution
The fourth proportional to 153,246,421.06, 211,484,544.57 and 83,636,266.66 is: 115,420,494.92
Step by Step Solution
- Step 1: Write the proportion equation
153,246,421.06 : 211,484,544.57 = 83,636,266.66 : x - Step 2: Convert to fraction form
153,246,421.06/211,484,544.57 = 83,636,266.66/x - Step 3: Cross multiply
153,246,421.06x = 211,484,544.57 × 83,636,266.66 - Step 4: Simplify right side
153,246,421.06x = 17,687,777,764,125,174 - Step 5: Solve for x
x = 17,687,777,764,125,174/153,246,421.06 - Step 6: Final answer
x = 115,420,494.92
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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.