Finding the Fourth Proportional to 319,686,908.76, 441,167,929.83 and 173,009,192.76
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Solution
The fourth proportional to 319,686,908.76, 441,167,929.83 and 173,009,192.76 is: 238,752,683.70
Step by Step Solution
- Step 1: Write the proportion equation
319,686,908.76 : 441,167,929.83 = 173,009,192.76 : x - Step 2: Convert to fraction form
319,686,908.76/441,167,929.83 = 173,009,192.76/x - Step 3: Cross multiply
319,686,908.76x = 441,167,929.83 × 173,009,192.76 - Step 4: Simplify right side
319,686,908.76x = 76,326,107,411,488,624 - Step 5: Solve for x
x = 76,326,107,411,488,624/319,686,908.76 - Step 6: Final answer
x = 238,752,683.70
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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.